Pretty much

Myth

You know how young teenage men are always putting gel and crap in their hair to make it stand up? It turns out that this practice has its origins among the Tuppawara tribesmen of the Amazon, where young men masturbated frequently and applied their own semen to their hair as a sign of virility. The more perfectly vertical the hair, presumably, the more virile the owner. On occasion, older, stronger boys would forcibly fellatiate others to collect and use their semen as well. Think about that next time you watch Jersey Shore!