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1.
A crazy ass guy who runs around almost completely naked, save for a pee stained pink speedo. He is a mean drunk, but also a meaner sober. If you anger him, he will shout in his native language (gobbese) which can only be understood by a select few, then proceed to beat you with a beer bottle and piss on you. You will never walk again.
"Oh my gobb!"
"FLJALKDJLKAJFL"
Gobb will now beat you with a beer bottle
by Habeeb FTW January 23, 2007
 
2.
1. Another name for mouth.
2. Can be used in the same context as "shut up"

Jeeze Banana shut your freakin gobb okay!
- a quote from the movie "Juno"
by KingOfSpartan January 04, 2008