off one's rocker

Also, off one's nut or trolley . See off one's head.

Name	Pronounced	Usage
Darrell	DER-əl, DAR-əl	English
AnĈJo	AHN-chyo	Esperanto
Parrish	['pæriʃ]
Sa'adat	-	Arabic
Hafiz	-	Arabic
Anoubis	-	Egyptian Mythology (Hellenized)