guttocks 

a.k.a the FUPA, the Fupa chalupa, the front butt or the gunt...use your imagination

Johnny Walnuts has a guttocks like a ninety year old woman

guttocks by Ethan Solomon March 9, 2004

guttocks 

thats your ass in the front .. aka your belly

"Dude was wearing a tight ass shirt showing off his guttocks."

guttocks by Dirty Sanchez February 29, 2004

guttocks 

The extreme pedulosity of TJs belly

TJ was in agony as the Geek applied the guttocks claw

guttocks by Tim/Ted January 12, 2004

Gruttocks 

An expression of disbelief or disregard used by elderly farmers that don’t get out much

Official - "I'm sorry Mr Giles but the road will be crossing your land"

Farmer Giles - "Gruttocks!"

Gruttocks by Elfingholm December 18, 2008