The meaning of CRAZY is not mentally sound : marked by thought or action that lacks reason : insane —not used technically. How to use crazy in a sentence.
Definition of crazy adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
to an extreme: We shopped like crazy and bought all our Christmas gifts in one afternoon. Idioms with great speed or recklessness: He drives like crazy once he's out on the highway.