1 definition by Michael B Hawke

Top Definition
An expression of abject surprise; the user is so shocked that he/she has transcended the boundary between noun and verb and utilsed the word 'cock' as the latter.
Prima: Dude, Elly just pissed all over your cat while it was sleeping.

Secunda: Cock my bum.
by Michael B Hawke October 06, 2009

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