go off (one's) rocker

(redirected from go 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 ?
My country and my people are friendly, peace-loving people but in a stadium, one fan can go off his rocker and create an incident.
Even some of his Ministerial colleagues are privately concerned at Mr Blair's tendency to go off his rocker at the slightest provocation.