An overlay is when the total buy-ins in a tournament do not reach the preset guarantee, meaning the casino or cardroom has to put up the rest of the money themselves and take a loss.   “It was a $2,000,000 guaranteed prize pool, but the buy-ins only reached $1,800,000. What a massive overlay!”

OTB in poker stands for “on the button.” This shorthand is commonly used in hand histories.   “I raised in the CO, and the player OTB called.”

An Overblind, or oversize blind, is a blind that is higher than the regular blinds at the table. Often seen in kill pots in limit variations of poker, an overblind may be posted by the player who won the previous pot, raising the action for the following hand. 

OOP stands for Out of Position. When a player is Out of Position, it means they must act first, before the other players in each betting round. You’re out of position on any player that gets to act after you in a particular betting round. “I was out of position on the small blind against…

Open shoving means moving all-in preflop as the initial preflop raiser. For example, if you’re sitting on a 20 big blind stack in the Hijack position and all players acting before you fold, you have the opportunity to open shove with your stack. This move is most often seen in tournaments.

An over-flush occurs when a made flush loses to a stronger flush in a particular hand. For example, if you hold A♠ K♠, an opponent has J♠ T♠ and the board runs out 9♠ 2♦ 7♣ Q♠ 3♠, you’ve over-flushed your opponent.

In Omaha and Hold’em games, an overpair is a pair that is higher than any community card. For example, on a flop of T♦ 2♠ 3♣, pocket pairs such as JJ, QQ, KK and AA are overpairs. Want to learn how to play overpairs? Check out this guide: 3 Tips to Help You Maximize Your…

An overcard is a card of a higher rank than the community cards or those in a player’s hand. Here are a couple of situations in which you might refer to overcards: When you hold pocket jacks, any ace, king or queen that comes out on the board is an overcard. On a flop of…

Overcall can mean: 1. To call a bet or raise after other players have done the same. For example, if the Hijack raises, the button calls and you call as well in the big blind, you’re overcalling. You have to be calling against at least two players for it to qualify as an overcall; a…

When a player is Out of Position (OOP), it means they must act first, before the other players in each betting round. You’re out of position on any player that gets to act after you in a particular betting round. “I was out of position on the small blind against two other players, so I…

An out is an unseen card that will complete a player’s drawing hand or make the hand stronger. For example if you hold A♠ K♠ and the board reads 3♠ 7♠ 8♦ 2♥, your outs are any ace or king (making top pair), or any spade (making a flush).  Outs are used in determining a…

An orbit is a full rotation of hands in which the blinds have passed around the entire table. “I’m going to play one more orbit and then sit out on the next big blind.”

The option is the choice given to the Big Blind or straddle to check or raise when it is his/her turn preflop, when nobody has raised in front of them. “The option was on me in the big blind after two players limped and everyone else folded.”

An open-ended straight draw is a hand with four consecutive cards, in which the cards at each end would complete a straight. For example if you held 65, 96 or T9 on a board of 7-8-2, you’d have an open-ended straight draw.

Open-limping means being the first player to enter a pot preflop with only a call instead of a raise. “Phil open limped for 100 chips in early position and got three callers.”

Opening means being the first to bet in a hand. Also referred to as open raise. “I opened for $10 on the button and both of the blinds called.”