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A nasty girl (ie. busted face, bloated midriff etc...) who goes to parties, waits till normally self-respecting guys get drunk, and attempts to hook up with them.
Oh dude, watch out for karen, she's a KEG TROLL and she's on the prowl!
by rick March 28, 2005
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Nasty girl who waits at parties till everyone is drunk then she will get with them.
Nick's sister was a totally kegtroll last night at the party.
by austin Heron April 21, 2006
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