offsuit
Cards that are not of the same suit. The ace of clubs and the king of spades are called ace-king offsuit

open
To bet first.

open ended, open ended straight draw
An outside straight draw. Also “two-way straight draw”.

openers
The cards held by a player in a game of “jackpots” entitling him to [...]

natural card
A card that isn’t wild or otherwise modified by the game rules. In some houses, a natural hand beats an equivalent hand that uses wild cards, though this is not generally the case.

M-ratio
In no-limit or pot limit games the ratio of stack to the blinds and/or antes. For example 8-way in a no limit game hold’em game with blinds of $50/$100 and an ante of $10 a stack of $23,000 has an M-ratio of 100. To further clarify, M = $23,000 / [$100 [...]

laydown
A tough choice to fold a good hand in anticipation of superior opposition.

limit
The minimum or maximum amount of a bet.

limp, limp in
To enter a pot by simply calling instead of raising.

live
1.Still raisable. A live bet is one which a player can raise even if they’ve already bet and [...]

keep (a bettor) honest
To call a final bet while not expecting to win, for the primary purpose of discouraging future bluffs.

kitty
A pool of money built by collecting small amounts from certain pots, often used to buy refreshments, cards, and so on. The home-game equivalent of a rake.

Need an [...]

jack it up
To raise.

jackpot

A game of “jackpot poker” or “jackpots”, which is a variant of five-card draw with an ante from each player, no blinds, and an opening requirement of a pair of jacks or better.
A large pool of money collected by the house and awarded for some rare [...]

idiot end, ignorant end
The bottom end of a straight.

immortal
Unbeatable; often said of a hand that a player knows cannot be beaten under the circumstances of play. Also “lock”, “nuts”.

improve
To achieve a better hand than one currently holds by adding or exchanging cards as provided in the rules of the [...]

half bet rule
In some casinos, the rule that placing chips equal to or greater than half the normal bet amount beyond the amount required to call constitutes a commitment to raise the normal amount. For example, in a game with a $4 fixed limit, a player facing a $4 opening bet [...]

garbage

The “muck”.
A worthless hand.

going south
To sneak a portion of your chips from the table while the game is underway. Normally prohibited in public card rooms.

grinder
A player who earns a living by making small profits over a long period of consistent, conservative play.

guts, guts to open

A game with [...]

family pot
A deal in which every (or almost every) seated player called the first opening bet.
fast
Aggressive play. I was afraid of too many chasers, so I played my trips fast.
feeder
In a casino setting, a second or third table playing the same game as a “main” table, and [...]