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Australian collouquialism for skin between your balls and your asshole. (see: taint). Note also: world-wide grammar and anatomy scholars are still debating whether women have a 'gug'.
"Hey baby, maybe tonight we should go see Bridget Jones Diary again and then you can lick my gug"
by - May 14, 2003
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2
The sound made when giving a blowjob.
"Girl where were you last night!?"
"Sorry boo I was gugging on that dick!"
by hay21tre July 28, 2014
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3
A homo-sexual bug or bug like person that is homosexual.
Erwin is a gug.
by Braun March 22, 2004
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4
A furry creature, large as a barrel, with talons and a mouth full of razor sharp fangs which opens vertically rather than horizontally.

Featured in H.P. Lovecraft's "The Terror Beyond".
"Then two pink eyes shone, and the head of the awakened Gug sentry, large as a barrel, wabbled into view."
by Mejin January 18, 2008
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6
gay until graduation, the experimental phase in college.
girl: I dated a girl my freshman year of college
boy: awesomeeeeeeee
girl: im not into girls anymore
boy: you're such a GUG
by mcbillions May 04, 2009
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7
A gay bug, a boy with big bags under his eyes looking like hes drunk and is known as a gay bug, gug.
"Yo seriously that erwin kid from rick hansen secondary school in mississauga ontario looks like a gug" said Andrew
by AndrewN March 23, 2004
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