slightly crazy 傻乎乎的;疯疯癫癫的 The music is driving me barmy. 音乐让我变得疯狂。 The woman upstairs seemed to have gone completely barmy. 楼上的那个女人似乎变得完全疯了。
Word Originlate 15th cent. (in the sense‘frothy’): from ‘barm’ ‘the froth on fermenting malt liquor’ + -y.