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
CrÍOstÓIr	-	Irish
AdİL	-	Turkish
Felicianus	-	Late Roman
Fern	FURN	English
Ethelinda	-	English (Archaic)
Antigonus	an-TIG-ə-nəs (English)	Ancient Greek (Latinized)