out of (one's) tree

slang Crazy. After yet another sleepless night, I'm starting to feel like I'm out of my tree. He's out of his tree if he thinks this plan is going to work!

Common Names:

Name	Pronounced	Usage
Marita (2)	-	Swedish, Norwegian
Iosue	-	Biblical Latin
Lemuel	['lemjuəl]
Aberash	-	Eastern African, Amharic
Quintin	KWIN-tin	English
Sheine	-	Yiddish