crazy . crazy or mad or nuts about {adj. phr.}, {informal} Excessively fond of; infatuated with. Jack is totally nuts about Liz, but she is not too crazy about him. Categories: add yours crazy {adj. phr.} {informal} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: C Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Leave my opinion