be out of (one's) mind

slang To be crazy. This phrase can be followed by "with" and the cause of the craziness. He's out of his mind if he thinks this plan is going to work! After yet another sleepless night, I'm starting to feel like I'm out of my mind with exhaustion.

Common Names:

Name	Pronounced	Usage
Mykhailo	-	Ukrainian
Lyman	['laimən]
Sheldon	['ʃeldən]
Curtis	KUR-tis	English
Beatrix	BE-ah-triks (German), BAY-ah-triks (Dutch), BEE-ə-triks (English)	German, Hungarian, Dutch, English (Rare), Late Roman
NeŽA	-	Slovene