Udderfuck derives from utter-fuck describing someone who is a real asshole.

Also used as an insult insinuating someone spending too much time in the barn milking bulls.

Or someone who particularly enjoys fucking a woman between her (cowlike) huge boobs.

Also is a nickname of a popular character in the Everquest II universe.
Yeah that guy, Shadow, is such an udderfuck!
by Athi May 27, 2008
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In the countryside of Wolfsville, a man uttered“that bull is being utterly udderfucked by that dominating heifer, and I can hear the teets slapping!”
by GarlicThyme May 4, 2018
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