To have a 'Halley Cropper' is to have performed an act which is perhaps indecent, stupid or inapropriate. The term is derived from the popular coronation street character. For instance if u have had a Halley Cropper, you've had an absoloute shocker
Doug drops his drink on the floor after having too many.
His acquinatnce exclaims 'you have had an absoloute Halley Cropper their'
by David Kingo March 13, 2008
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