Wiktionary
n. (context games drinking alcohol English) A game (often a logic or memory game) which involves the drinking of alcohol, usually as a penalty for making mistakes, as the intoxication makes the game harder to play.
Wikipedia
Drinking games are games which involve the consumption of alcoholic beverages. Evidence of the existence of drinking games dates back to antiquity. Drinking games have been banned at some institutions, particularly colleges and universities.
Usage examples of "drinking game".
At the opposite end of the high table, Hothen and Mors were playing a drinking game, slamming their horns together as hard as knights meeting in joust.
Elsewhere in the hall, Ser Marq Piper and Ser Danwell Frey played a drinking game, Lame Lothar said something amusing to Ser Hosteen, one of the younger Freys juggled three daggers for a group of giggly girls, and Jinglebell sat on the floor sucking wine off his fingers.
He'd apparently lost his clothing in a drinking game and was trying to hide, but soon he let the women draw him out by the arms and lead him back down the hall and through a door.
The other men in the room were in the midst of a drinking game with two geisha, but the conductor refused to join.
He didn't realize that this was because of an old drinking game that Ford learned to play in the hyperspace ports that served the madranite mining belts in the star system of Orion Beta.