One paira hand containing one pair of cards of the same value, irrespective of suit
One-GapA hold'em starting hand with two cards two apart in rank. Examples: J9s, 64.
OOMOut of Mana. People say this to let their party know they are out of mana and can't cast any spells, especially healing.
Open-Ended Straight DrawSeeking one of two card values to make a straight. For instance, a player holding 9-8 with a board of 2-7-6 can make a straight with either a ten…
OrphansFrench phrase. Common in European casinos. It's a bet on three specific numbers 6, 34 and 17 that are neighbours on the wheel, but far apart on the layout.
OrphelinsFrench phrase. Common in European casinos. It's a bet on a specific group of numbers on a section of the roulette wheel that are neighbours on the wheel…
Orphelins (Orphans)most commonly found in European casinos. Orphan is when players bet on specific number of three, which are laid out close together on the wheel, but are…
Oustide betBets on 1 to 1 even money (red/black, odd/even, high/low) and 2 to 1 (dozen or column) payouts.
OutA card that will make your hand win. Normally heard in the plural. Example: "Any spade will make my flush, so I have nine outs."
OutrunTo beat. Example: "Susie outran my set when her flush card hit on the river."
Outside betwhen a player bets with even money (for example black/red, high/low, odd/even) and the payout is 1:1
Outside BetsOne of the 2-to-1 or even-money bets found on the outside of the roulette layout.
OvercallTo call a bet after one or more others players have already called.
OvercardA card higher than any card on the board. For instance, if you have AQ and the flop comes J-7-3, you don't have a pair, but you have two overcards.
OverpairA pocket pair higher than any card on the flop. If you have QQ and the flop comes J-8-3, you have an overpair.