(mathematics, economics, dated) game theory.

(mathematics, economics) A branch of applied mathematics that studies strategic situations in which individuals or organisations choose various actions in an attempt to maximize their returns.

(mathematics, economics) Of, relating to, or defined in terms of game theory.

(idiomatic) To ridicule; to make fun of.

(idiomatic, almost always preceded by the, informal) The essential element (needed to reach the principal goal or objective); the overall purpose.

A bird that is hunted for sport, especially one used for food.

(idiomatic) A numbers game: the use of inappropriate statistics (numbers) to reflect a desired result (usually misleading). / plural of number game: lotteries, numbers games.

(games) 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.

(idiomatic, often used ironically) Recreation; nothing serious; easy, enjoyable activities.

(games, psychology) An attempt at psychological manipulation against someone, in order to confuse them.