off one's rocker

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

Name	Pronounced	Usage
Valerie	VAL-ə-ree (English), VAH-le-ree (German)	English, German, Czech
Era	-	Albanian
Simonette	-	English (Rare)
Emilee	EM-ə-lee	English (Modern)
DieudonnÉE	dyuu-do-NE	French
Ferrer	-	Various