30 Casino Slang Terms Every First-Time Player Should Know

Casino floors have their own vocabulary. Here are the 30 terms you'll hear on a first trip — translated.

In 60 seconds

The 30 most useful casino terms: Theo (theoretical loss). Comp (complimentary; rebated value). Hold (% the casino keeps). Edge (statistical advantage). Color me up (exchange small chips for larger). Push (tie). Six-five (bad blackjack payout). Eight-six / 9-6 (video poker pay table). Boxman (craps supervisor). Eye in the sky (surveillance). And 20 more below.

Casino floors have a vocabulary that takes a few trips to learn. Here are the terms you'll actually hear, sorted by category.

01

Money & Comps

  • Theo (theoretical) — Your expected loss based on bet size and house edge. The casino's measure of you.
  • Actual — Your real cash result. Not what comps are based on.
  • Comp / complimentary — Anything the casino gives back. Rooms, food, free play.
  • Free play — Casino-issued credit you must wager once before cashing out winnings.
  • Mailer — Promotional offer mailed to active players.
  • Host — Casino employee who manages high-end player relationships.
  • Status match — Matching another casino's loyalty tier into a new program.
02

Tables

  • Color me up — "I'm cashing out, please convert my small chips to larger ones." Said when leaving a table.
  • Push — A tie. No money changes hands.
  • Toke — A tip for the dealer.
  • Heat — Aggressive scrutiny from a pit boss; usually because they suspect counting.
  • George — A generous tipper. (Compliment from dealers.)
  • Stiff — A hard 12-16 in blackjack. Or, a non-tipper. (Insult.)
  • Square — A non-counter, non-advantage player. (Often used neutrally.)
03

Specific games

  • Six-five (6:5) — Bad blackjack payout. Pays $6 for a $5 bet on natural blackjack instead of $7.50.
  • Three-two (3:2) — Real blackjack. Pays $7.50 for a $5 bet on natural blackjack.
  • 9-6 / 8-5 / 7-5 — Video poker pay table notation. 9-6 is best, 7-5 is worst.
  • Don't pass / don't come — Craps bets that bet against the shooter.
  • Hard / soft — In blackjack, hard hands have no Ace counting as 11. Soft hands have an Ace counting as 11.
  • Penetration — In blackjack, what fraction of the deck is dealt before reshuffling. Higher = better for counters.
04

Slots

  • RTP (return to player) — Percentage of money the machine pays back over millions of spins.
  • Hold percentage — Inverse of RTP. The percent the casino keeps.
  • Volatility / variance — How much individual outcomes deviate from average. High = bigger swings.
  • Hand-pay — A jackpot too large for the machine to dispense; an attendant comes and pays in cash + W2-G form.
05

Loyalty

  • Tier credits / TC — Points used to determine your loyalty tier (Gold/Platinum/Diamond etc.).
  • Reward credits / RC — Points used to redeem comps. Distinct from TC.
  • Multiplier — Special days where TC accumulation is 2x, 5x, or 10x normal.
  • Match play — A coupon doubling a single bet on table games.
06

Surveillance & operations

  • Eye in the sky — Casino surveillance system (cameras, AI, human review).
  • Pit boss — Mid-level supervisor for a section of table games.
  • Boxman — Specifically the seated supervisor at a craps table.
  • Floorperson — Lower-level table-game supervisor (one per ~6 tables).
  • Cage — The cashier window where chips convert to cash.
07

Bonus and uncommon

  • W2-G — IRS form for taxable jackpots ($1,200+ on slots, varies on tables).
  • Whales — High-rollers, typically betting $10K+ per hand or per spin.
  • Grind — Long, slow play with small bets and discipline.
  • Bust-out — A hand or session that ends in zero.

For our beginner's first-trip walkthrough: your first casino trip, hour by hour. For more on how casino comps actually work: how casino comps actually work.

Last updated August 19, 2026

Topics

  • beginner
  • glossary
  • slang

More casino guides