Dirty Man Competition
A competition in which a man does not shave his beard of cut his hair for 1 year. During said year people who dared the man to enter the contest, provokes him to shave his beard and thus losing the competition.
Seth Rogen's friend in the Movie Knocked Up, dared him to enter A Dirty Man Competition by convincing him if he succeeds his roommates would pay his rent, if he fails which he did he would have to pay everyones rent