Slot machines have been around for well over a century. And during this time, the game has produced many unique words and phrases.

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Of course, some of these terms are more uncommon than others in the gaming world. And it’s more difficult to understand slots when you don’t know what these terms mean.

That being said, let’s look at 9 of the most uncommon words and phrases used in slot machines. Understanding these terms will help you with regard to strategy and your knowledge of the game.

1 – Random Number Generator

The term random number generator (RNG) is exclusive to slots. In fact, it’s commonly used in conjunction with any machine based casino game.

But I see RNG used with regard to slot machines more than any other game.

The RNG is a program that generates number sequences. And these number strings determine the results of a slot machine.

A random number generator cycles through thousands of number sequences per second. When you choose the spin button, the RNG will select one of these combinations to determine your results.

But this ensures that every slot machines spin is completely random.

Players who don’t understand the RNG often believe a number of myths about how slot machines work. Here are a few slots myths that are based on not understanding the RNG:

• You can win more by finding the “hot” slot machines.
• Time your spins correctly to win more money.
• Somebody can “steal” your jackpot if you leave a machine.
• Casinos manipulate slots results when you’re winning too much money.
• Don’t play slot machines after they’ve paid a jackpot.

Once you know that a random number generator cycles through countless combinations every second, you won’t fall for these myths.

2 – Loose and Tight Slot Machines

Many casinos like to advertise that they have the loosest slot machines in their area. The term “loose” slots refer to a game that has a high payback percentage.

As you may know, payback (a.k.a. return to player) refers to how much a game pays over the long term. Here’s an example:

• You’re playing a slot machine with 95% payback.
• You bet $300 on the game.
• You would theoretically win back $285 during the session.

Theoretical is the key word here because it takes hundreds of thousands of spins before a slot machine reaches its stated payback percentage. Nevertheless, you want to find and play loose slot machines.

Tight slot machines refer to games that don’t have very high payback. No international guidelines exist on what determines a tight slot machine.

But I suggest that a tight land-based slot machine is one that pays back less than 90%. Tight online slots include games that pay back less than 95%.

One more thing worth mentioning is that you should never blindly follow any casino advertisement touting their loose slots

Again, there’s no recognized guideline on a loose or tight slot machine. This is why I encourage you to do your own research and find slot machines/casinos that offer the best payback.

This is especially easy for online slots because gaming providers offer uniform payback percentages across all of the casinos they supply.

If you search “Real time Gaming slots payback,” for example, you can see what their top games are. You then visit any casino with Real time software and play their highest paying slot machines.

3 – Hit Frequency

Hit frequency, or payout frequency, refers to how often a slot machine pays a prize of any kind.

This is different than payback percentage because payout frequency doesn’t deal with how much money you’ll win over the long term.

Another difference is that you won’t find a concrete number on hit frequency. Instead, you have to estimate the frequency.

Here are the main factors you want to look for when determining payout frequency:

• Jackpot size – Bigger means lower hit frequency.
• How many large vs. small payouts – More small means a higher hit frequency.
• Number of bonuses – More bonuses equal a lower payout frequency.

Slot Machine Words

This concept is really important for players with a small bankroll who want to maximize their time on slot machines.

If you play a slot machine with a big jackpot and other large payouts, then you’re dealing with low hit frequency. And this means that your bankroll probably won’t last very long.

Low rollers should play games with smaller jackpots and more small payouts. This helps you get frequent wins and sustain your bankroll longer.

4 – Wide Area Progressive Jackpot

A progressive jackpot is one that takes a small percentage of bets to seed a large prize. This jackpot continues growing until somebody wins.

Many slots players understand the concept of a progressive jackpot. But fewer understand what a wide area progressive jackpot means.

This term refers to a collection of slot machines being linked across different casinos. The linked machines help create a larger progressive jackpot because they involve more casinos and players.

The most famous example of a wide area progressive jackpot in land based casinos is Megabucks. Developed by IGT, Megabucks has paid out many of the largest jackpots in slots history.

This includes a record breaking $39,710,826 prize won by a player at Las Vegas’ Excalibur casino in 2003.

The best example of a wide area progressive jackpot in online casinos is Mega Moolah. Created by Microgaming, Mega Moolah commonly offers the largest progressive jackpot in online gaming.

In 2015, British soldier Jon Heywood won a record breaking €17,879,645 payout through Mega Moolah.

5 – 243 Ways & 720 Ways

Most slot machines see you win payouts by landing specific symbol combinations in a pay line. For example, you might get 1,000 coins for getting 5 bumble bees in an active line.

But there also slot machines that don’t have pay lines, including 243 ways and 720 ways games. The number refers to the fact that you have either 243 or 720 ways to win on any spin.

You win in these slots by getting matching symbols in adjacent reels, beginning with the left most reel. This differs from pay line slots because the symbols only need to be in touching reels, rather than in a specific line.

243 ways slot machines have a standard 5×3 format and see you form wins from left to right.

720 ways slots have a strange 3 4 5 4 3 format going across the five reels. But these games allow you to form wins going from both left to right and right to left.

243 and 720 ways slot machines are exciting because they give you so many different chances to win on each spin. The only catch is that you often have to bet $0.25 or more per turn.

This won’t bother players who are used to playing every pay line in a slot machine. But if you’re somebody who likes to play 10 lines are less at one cent a piece, this may be more than you’re comfortable spending.

6 – Ticket In, Ticket Out

Up until the mid 1990s, most slot machines operated through coins. You would insert your cash into a machine, and coins would come rushing out after big wins.

Slot machines still have a coin based reputation among the general population. But the truth is that today’s slots operate on ticketing systems.

Called ticket in, ticket out (a.k.a. TITO), these machines see you insert money or vouchers into the bill acceptor. When it’s time to cash out, you’ll receive a voucher that can be used to get your money.

You can also keep the voucher and use it at the casino next time you play slot machines.

The reason why casinos switched to the TITO system is because it’s a more efficient way to handle slot machines. It’s also cheaper and requires much less labor.

In the past, casino attendants had to fill slot machine “hoppers” with coins. This time consuming process required more manpower and put slot machines out of commission temporarily.

TITO slot machines still require maintenance with regard to filling machines with paper vouchers. But this is done far less frequently than putting coins into machines.

The end result is that casinos save money on labor and don’t have to shut down games as often.

You can still find some coin based slot machines in Las Vegas. But these are rare from a general standpoint.

7 – Second Screen Bonus

The most common slot machine bonus is free spins, where you can spin the reels and win prizes for free. While everybody loves having the chance to earn free payouts, free spins don’t deviate from standard slots play.

This is why a growing number of slot machines include second screen bonuses. These are bonus rounds that take you to a different screen to play a different format than simply spinning reels.

Here are common formats used in second screen bonuses:

• Spin a wheel – The wheel is marked with prizes, and you spin to determine your prize.
• Pick objects – You select different objects onscreen to uncover payouts.
• Pick’em – Triggering scatter symbols remain onscreen, and you select them to reveal credit prizes.
• Board game – You move a character around a board with dice and collect prizes along the way.
• Fight – Select the character you think will win a one on one duel.

The idea behind these bonus rounds is that you get a break from the reels and can enjoy a fun new game. This creates anticipation as you hope to land enough scatter symbols to trigger a bonus.

Some game makers are also experimenting with skill based bonus rounds.

One example is Bally Technologies’ Centipede slot machine. Based on a 1980 arcade machine, Centipede’s bonus round sees you shoot advancing aliens in order to rack up credits.

Skill based bonus rounds aren’t very prevalent right now. But I definitely see the future of slot machines including more and more of these bonuses.

8 – Sticky Wild & Expanding Wild

Funny Slot Machine Quotes

Slot machine players are very familiar with wild symbols, which substitute for icons to form winning payouts. Some wild symbols also have special features that improve your chances of winning even more.

Two examples include sticky and expanding wilds.

A sticky wild differs from a standard wild icon because it remains onscreen for more than one spin. Sticky wilds are common in free spins and usually last until your free games are over with.

An expanding wild expands to fill the entire column where it appears. This means that you’re essentially getting multiple wild symbols across an entire column.

Some slot machines limit expanding wilds to the middle column, which would be reel 3 in a five reel slot. Other games allow you to get multiple expanding wilds within the same span, which really improves your chances of earning big prizes.

9 – Hold & Nudge

UK casinos and pubs feature fruit machines (a.k.a. fruities), which are basically the same thing as slot machines; But fruities and slots do have minor differences, including the following:

• Fruit machine symbols are usually based on fruits.
• Fruities have lower payback than slot machines.
• Fruit machines have hold and nudge features.

The hold feature allows you to hold a specific reel in place for the next spin. This is really valuable when you get wild symbols and/or high paying icons in a specific reel.

Nudge lets you nudge the reels at the end of a spin. This helps you turn losing spins into wins and increase smaller payouts into larger prizes.

You can use hold and nudge in a skillful manner to increase your winnings. But keep in mind that casinos and pubs factor these features into the payback.

Long story short, don’t overestimate your chances of beating a free machine just because hold and nudge are available.

Slot Machine Phrases

Conclusion

Many people like slot machines because they’re easy to play and provide free entertainment. This means that you don’t need to know much slots lingo to play.

Nevertheless, it’s still a good idea to learn what you can about slots to improve your experience.

Some uncommon terms that you’ll want to know include 243 ways, 720 ways, wide area progressive jackpot, second screen bonus, and various wild symbols. Knowing these phrases helps you identify the games that you’d most like to play.

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Other terms like loose slot machines, tight slot machines, and hit frequency help you find games with high payback and frequent payouts.

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The slots world is filled with many other terms. But as long as you understand the uncommon words and phrases we’ve covered here, then you’ll be fine.