Guillotine

Getting fucked in the back of the car with your neck in the driver’s side headrest while getting fucked from behind

a variotion on the tea bag. while squating over a woman, forcefully squat in a downward motion untill the nut sack impacts the eye of the woman resulting in a black eye.

When a girl has a really fucking hot body but an ugly as shit face

Slap your friend's adam's apple with your penis while he's sleeping, then throw your hands up and scream "You Just Got Meat Guillotined", throw water on him, and walk out.

when, after lifting up the toilet seat to take a piss, the toilet seat falls, causing it to slam back down on your penis, much like a guillotine

When an uncircumcised man is receiving oral sex, and his partner becomes startled, causing them to bite down and cleave his foreskin, leaving behind a perfectly circumcised penis and a newly Orthodox Jew.

A horizontal guillotine running on a track supported by FOUR posts. Your head goes between the tracks. As the guillotine blade approches, a light notifies you to begin a swift kicking motion (Put all you have into it!) An arm is triggered as the blade passes which pushes your detached head forward, making contact with your extended leg. The best case scenario is you punt your own severed head into the grand canyon. (Very difficult to achieve as you only get one try.)