fumgruncher 

A person that sits in a bath tub and farts, and as the bubbles rise to the surface, he or she tries to catch them in his or her mouth.

Davey is such a Fumgruncher

fumgruncher by HLwakestud16 May 24, 2007

fumgrunching 

The act of catching a fart bubble in one's mouth, as it rises to the surface of the water in a bath tub.

Nat was fumgrunching last night.

fumgrunching by HLwakestud16 May 24, 2007