What is a yak?

What is yak?

An ugly female, or woman who is obese, or has unattractive features or an unpleasant odour. Has other meanings as well.

Definition

Many college initiations, or hazing, involves pledges seeking out an ugly person, to bring to a fraternity party, and the one who brings the ugliest person, wins.

Usually a rather cruel trick, where the 'date' is humiliated in public, or made fun of.

They are generally lured without knowing that it is a cruel joke, to make fun of their features.