An ugly chick is the one in a group of girls at the bar that is the least becoming of any others in her group - and she knows it. Tries very hard to gain the attention that her more attractive friends get from the opposite sex - usually to the point of annoyance !
Dude, it's your turn to take one for the team and take the ugly chick tonight !
by tonare1 September 12, 2013
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The theory that every ugly chick has an extremely hot friend. You have to be nice to said ugly chick to get to the hot friend.
"Dammit! There's only ugly chicks here!"

"Dude, don't worry. Remember the Ugly Chick Theory!"

"Sweet."
by AJAW October 01, 2004
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