go off (one's) rocker

To become crazy or mentally unsound; to become extremely foolish or foolhardy. I'm going to go off my rocker if I have to hear that blasted song once more! I think Jane's grandmother has gone off her rocker lately. You must have gone off your rocker if you think that's a good idea!

Common Names:

Name	Pronounced	Usage
Thoth	-	Egyptian Mythology (Hellenized)
Junior	JOON-yər	English
KerİM	-	Turkish
Wera	VE-rah	Polish
Darcy	['dɑ:si]
Galen	GAY-lən	English