Top Definition
Derogatory slang to mean someone is an imbecile.

The word derived from my colleague sully when I was helping him move boxes and accidentally dropped a box on his foot.
Sully: "Chris you cock on a stick....you've just dropped that box on my foot"

Chris: "Your the cock on a stick for leaving your foot where the box would fall on it"
by Chris_Pert July 26, 2006

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I was really impressed to discover that someone else uses this excellent term. I use it as a 'mild' expletive when something happens that slightly annoys or frustrates me.
'You are joking, we haven't got another meeting tonight have we? What a cock-on-a-stick.'
'Cock-on-a-stick, where are my car keys?'
by The original faggot February 10, 2010

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