The term Under the Gun in poker is defined as being the first person to act preflop (before community cards hit the board) in games such as Texas Hold’em and Omaha.
This can be a daunting position for inexperienced and veteran players alike, as it may require years of study to fully understand “when” one should make a particular decision with relatively marginal or even strong hole cards. Playing poker “under the gun” with several other opponents at the table can be one of the most pressurized positions in the game.
