Have you heard of a pig party, in which frat guys compete as to who can bring the ugliest date?
A boar party is like that, in a way. A boar party is a party given by some groups of women university students in which each attendee puts down an ante of $20 or so and invites the homeliest guy that she can. After the occasion is over, a vote is taken by all of the girls who had participated, and the winner gets a new vibrator and the remainder of the money.
The Phi Taus had a boar party last Saturday night. Amy won it by taking Cletus.