off (one's) chump

(redirected from off her chump)

off (one's) chump

Crazy or insane. He must be off his chump to pay that much money for that old car. Am I completely off my chump for starting a business in this economy?
See also: chump, off

off your chump

crazy. British informal
The literal sense of chump meaning ‘a broad, thick block of wood’ led in the mid 19th century to its humorous use to mean ‘head’, with the implication of ‘blockhead’.
See also: chump, off
References in periodicals archive ?
New research suggests even mild exposure to the drug can cause serious psychiatric problems, and while it would be cruel and possibly libellous to describe Trisha as completely off her chump, you couldn't say she was completely on her chump either.
My sister's pal Mabel, who is widely acknowledged to be off her chump in any case, is an expert on the subject.