go off (one's) rocker

(redirected from went off his rocker)

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!
See also: off, rocker
References in periodicals archive ?
Then he went off his rocker in the parade ring with the Prix de l'Arc de Triomphe being shown on the big screen, so you see, that's not his true running.
The star has revealed he almost went off his rocker struggling to write material for the new CD Seal IV.