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An exclamation when you see something that is really good or really exciting or surprising...
I was walking down the street and this chick passed with a booty like j-lo and I said gat damn.....
by mandengho May 04, 2007
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2
An exclamation of frustration or exasperation without the blasphemy of 'goddamn'.
My fantasy quarterback broke his hand and is out for the rest of the season??? ...GATDAMN!

I just ran out of whiskey and the liquor store is closed? GATDAMN!!
by ShotgunWillie August 23, 2012
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3
An exclamation when you see something that is really good or really exciting or surprising...
I was walking down the street and this chick passed with a booty like j-lo and I said gat damn.....
by mandengho May 04, 2007
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Get a gat damn mug for your brother Georges.