look up any word, like kappa:
 
1.
A person who sits outside hotels in his car leeching bandwidth when his ISP is down.
I swear that is Gumpus, he's been sitting in his car for 4 days now.
by Kenshin April 10, 2005
 
2.
One who sits in the hot-tub biting everyone's fart bubbles.
I ain't goin' in till that gumpus leaves.
by yonder August 29, 2004
 
3.
The infection contained in an abscessed tooth.
I need to take a break, hit the bathroom and seep this gumpus.
by emptyhead416 October 14, 2011