off one’s chump

mod. crazy; nuts. Am I off my chump, or did that car suddenly disappear?

Name	Pronounced	Usage
Nebo	-	Biblical
Mahendra	-	Indian, Hindi, Marathi, Gujarati, Sanskrit
Yehoshafat	-	Biblical Hebrew
Amyntas	-	Ancient Greek
Garnet (1)	GAHR-nət	English
DÁIre	DAW-ra	Irish, Irish Mythology