あたまへん 頭が変になる Show inflections LinksSentence search for 頭が変になるSentence search for あたまがへんになるKanji details for 頭 and 変Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ru' ending1. to go crazy; to go off one's head Discussions Log in to talk about this word.