Dictionary (n.) A man who is mad; lunatic; a crazy person.Thesaurus aliene ass bedlamite borderline case crackbrain crackpot dement demoniac donkey energumen fanatic flake fou idiot imbecile jackass jerk kook loon loony lunatic maniac meshuggenah nincompoop ninny non compos noncompos nut phrenetic psycho psychopath psychotic raving lunatic screwball weirdo |