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1.
While taking a bath, should a fart happen to come, you let it go. When the bubbles come up you open your mouth and make attempts to eat the bubbles. Congratulations, you're a guffer
Keeser Silver guffs so much
by jeff April 04, 2005
 
2.
Gypsys, Gypos, Pikeys.
Origin west midlands, England

Derived from Guff (a fart) cos they all smell as bad as a guff.
"What the foks that smell ?"
"It's the Guffers"
by Bobby Kanker August 14, 2003
 
3.
While eating out the stink put two fingers in the pink.
As she stood bent over he gave her the guffer.
by Harry Balsack July 13, 2006