be as nutty as a fruitcake

(British & Australian informal)

to be crazy 'Isn't she slightly strange, your aunt? 'Oh, she's as nutty as a fruitcake.'

Name	Pronounced	Usage
Lowery	['ləuəri]
Matylda	mah-TIL-dah (Polish)	Czech, Polish
Emmie
Othmar	-	German, Czech, Ancient Germanic
Galene	-	Ancient Greek
Cherette	shə-RET	English (Rare)