The poker shortening ATC stands for Any Two Cards and refers to playing any combination of two hole cards. Always playing ATC is usually a mark of an inexperienced poker player, although skilled players can do it sometimes.
ATC Poker Example:
You’re playing a poker tournament and are sitting neatly on a good stack while the bubble is nearing. Depending on factors like the blinds and your position, playing ATC is often profitable in this scenario.