Top Definition
A sarcastic insult that implies someone is either deformed or absolutely fugly.
Background: one day i was surfing through the internet looking at breeder snakes and there was a one-eyed one that had 'proven breeder' next to its name, thus i coined the insult 'proven breeder'.
"Wow Sean is a fucking proven breder. what a tool shed!"
" Wow your mom is a proven breeder, look at you!"
by Greg and Cory November 06, 2004
1 Word related to proven breeder

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