During a movie or play, you must sneak up on a man with beard and/or top hat and proceed to blow your load in the back of his head. After you're finished, successfully break your leg while fleeing from the scene.

It’s an acronym standing for Can’t Remember A Fucking Thing. It’s usually used to describe embarrassment at being unable to remember someone (CRAFT moment); going onstage as the lead in the latest theatrical performance and your mind goes completely blank (CRAFT situation); the next morning after a night when you got pissed as a fart and woke up in bed cuddling a traffic cone and a string of fairy lights wound round your prick.

When you sit behind an unsuspecting victim in a theater and jerk off, and at just the right moment, shoot her in the back of the head with your load and run out.