off one’s rocker

off (one's) rocker

Crazy; mentally unsound; extremely foolish. I'm going to go off my rocker if I have to hear that song one more time! I think Jane's grandmother is a little off her rocker these days. You must be off your rocker if you think that's a good idea!
See also: off, rocker
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

off one’s rocker

mod. silly; giddy; crazy. (see also rocker.) That silly dame is off her rocker.
See also: off, rocker
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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