look up any word, like blumpkin:
 
1.
Meaning bum, ass, arse, butt.

"Look at the trumper on that".
by Jon Warham June 09, 2007
 
2.
(n) a person with the annoying habit of out-doing or out-telling an anecdote.
Joe: Mike, I almost got hit by a car crossing Delaware Avenue while jogging.
Mel: Did I ever tell you about the time I almost got hit by a plane in Melbourne?
Mike: Mel, let him finish the story. Why do you gotta be such a trumper?
by ilprego February 24, 2011