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1 definition by SJASM

 
1.
The name given to a blowjob when the giver or recipient has a nickname of 'moo moo' and/or is shaped like a cow. It is often accompanied by a mooing sound as the receiver ejaculates.

Some couples dress up as cows for added effect, note that this is not to be confused with 'milking the moo'. Uniforms are optional.
Angela gave Tom a hard moo job while on all fours.
by SJASM September 23, 2008