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2.
When you stick your face between a persons asscheeks and give them a raspberry
giving an anal raspberry = brumpkin
by Matt Y July 22, 2006
 
1.
Performing of fellatio on a man who is sitting on a toilet and taking a crap.
Yo, you hear about Per and Max? They were just in the bathroom and Per gave Max brumpkin. Pretty sick, right?
by Fletch March 15, 2004
 
3.
A Blumpkin given by an Asian person
I was in Chinatown the other day and accidentally walked in on your boyfriend getting a Brumpkin, sorry.
by Reginald the Classy October 28, 2010