go off (one's) dot
go off (one's) dot
To become crazy or mentally unsound; to become extremely foolish or foolhardy. I'm going to go off my dot if I have to hear that blasted song once more! I think Jane's grandmother has gone off her dot lately. You must have gone off your dot if you think that's a good idea!
See also: dot, go, off
Farlex Dictionary of Idioms.
- go off (one's) rocker
- lose (one's) mind
- lose one's mind
- lose your mind
- lose one's buttons
- lose (one's) buttons
- lose (one's) marbles
- lose all one’s marbles
- lose one’s marbles
- lose one's marbles