Discover everything about the word crazy in english: Marked by thought or action that lacks reason : When she gets on the motorcycle she goes crazy. · use the adjective crazy to describe actions that arent sensible, like the crazy way your brothers run around the house when their favorite team wins a game. Meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide. We add new games every day. The meaning of crazy is not mentally sound : · out of control. Crazy adjective (interested) [ after noun ] used for saying that someone thinks about something all the time or wants it very much, in a way that some people might think is extreme: Crazy can also … One who is or appears to be mentally deranged: Very excited or enthusiastic. To them she is not a brusque crazy, but appropriately passionate (mary mcgrory). Insane —not used technically. Quotations he went crazy when he won. Play free online games at crazygames, the best place to play high-quality browser games.