Top Definition
The unexpected pregnancy of a homosexual man and his partner, whereas the man falls pregnant and no female is used.
Guy 1 - Oh boy, is Bill getting fatter?
Guy 2 - No way, he has a bun in his unit!
Guy 1 - OMG!!!
by aussiedude85 May 16, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×