It has long been recognised that expressions such as to pull someone's leg,to have a bee in one's bonnet,to kick the bucket,to cook someone's goose,to be off one's rocker,round the bend,up the creek, etc. are semantically peculiar.

"And I thought that you were off your rocker!"

Well - they said you were, well, that you seemed to be off your rocker.

"You have got to be off your rocker.

If you are off the scope, society thinks you must be off your rocker.

"Well, you are off your rocker."

Mr. Pronsky said: "You have to be off your rocker to park on the street.

JDS2003 : Please tell me that you're talking about Iran and not Israel, otherwise I think you must be off your rocker...

IF you had told me a month ago that I would give Martin's on Guilford Green even a moderately positive rating, I would have thought you were off your rocker.

"How would you feel if you did something that was really out of line with the thinking of the time, was so far-fetched that your children, your friends and your contemporaries thought you were off your rocker.

And if it were not for the fact that a case like this warrants a decision from H.Q., we'd cancel you out on our own. . . . For God's sake, Kyrie, you've got to be off your rocker."