off one’s chump

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

Name	Pronounced	Usage
Ton	-	Dutch
Mollie	['mɔli]
Feliciano	fe-lee-CHYAH-no (Italian), fe-lee-THYAH-no (Spanish), fe-lee-SYAH-no (Latin American Spanish)	Italian, Spanish, Portuguese
Byeong-Ho	byung-ho	Korean
Aart	AH:RT	Dutch
Mccloud	[mək'klaud]