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
RiŠKo	-	Slovak
Yakiv	-	Ukrainian
Fritz	[frits]
Rodina	-	Scottish
Katelijn	kah-tə-LIEN	Dutch
Bianka	-	German, Hungarian, Polish