A phrase to be said to anyone that ask for advice when going to the DMV for a driving test. The assumption is that the fat guy is a dick and will grade you tough.
Matt: I have my driving test in twenty minutes!!!!!!! What should I do!!!!!!!!!!
Michael: DON'T GET THE FAT GUY!!
by Stauder October 22, 2009
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An I-Mosh Fat Guy is that 1 very large dude you find in a mosh pit at a rock/metal/punk concert. It's always that 1 guy that pushes you. You aren't necessarily afraid of him but you hate having to deal with him.
Hey dude, why do you have that black eye?

Oh, I got smacked in the face by an I-Mosh Fat Guy at the concert last night.
by xxguitarxmetalxx666 March 6, 2010
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1. A classic Chris Farley scene from Tommy Boy (1995) in which he puts on a small coat and sings "Fat guy in a little coat."

2. A big penis in a small condom
-Put down my coat man
-Fat guy in a little coat!
by Mystic-X April 9, 2010
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The guy who stares at you and your girlfriend through the McDonald's window with a milkshake.
Jeff told me that him and his girl were creeped out by a fat guy in a Weezer shirt!
by Brian Bell April 9, 2011
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The well known rule that fat people may make fat jokes or comments at other fat people without offending them.

It is not required to say "Universal Fat Guy Rule" after a big guy makes a comment to another, nor is it to just say "UFGR".
Skinny Guy: Nice moobs, Joe!
Joe (Who's a hefty fellow) : *punch to the face*

Harold (Also a big guy): Nice moobs, Joe!
Joe: *starts to look offended, but remembers the Universal Fat Guy Rule* "Thanks!"
by AShiftyLookingFatGuy June 15, 2010
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