A huge, large nasty person. They are probably smelly and greasy, disgusting and generally repulsive.
Damn, Look at that whore Tauni, She turned into such a Fatty McFat after I dumped her slutty ass. She slept with every fool on the Winco night crew.
by Rob Lussier November 09, 2008
Get the Fatty Mcfatmug. by Rob Lussier September 01, 2008
Get the billy goatsmug. by Rob Lussier June 19, 2006
Get the Fizzledmug.