To give a head job to.

When one passes gas in thier own tighty-whiteys, then takes them off and wears them on thier head. Their will be a huge skidmark across the front, leading all the way to the back, resembling a racing helmet.

giving someone a B.J.(blow job)

In the absence of a condom using saran wrap, vaseline, and a rubber band as a contraceptive.

A colloquial expression for Male Masturbation.