A female who claims to be bisexual, but will only get down if other people are watching. Mainly drunk, highschool females.
'Hey let's get all the cheerleaders drunk togther. They're bi skanks and will give us a good show'
by annarexia January 26, 2004
a person who isnt actually bisexual. they usually just get too drunk and hookup with someone of the same sex or do it for the attention.
britney spears is a biskank who just made out with madonna for publicity.
by angie ;) February 24, 2006