Guillotine 

A very old French invention, typically with a large wooden frame, and a very sharp slate of metal attached to a rope. The person being executed is then laid down in position, the rope is pulled and they are decapitated.

"Today, at the hanging, we have two contraptions instead. An old-fashioned rope, and our new invention, the guillotine. It is swifter, and cleaner and has no chances of survival."

Guillotine by Intellectually Inclined Person February 22, 2019

Guillotine 

A sexual position involving two females and one male participant. The two females spread legs and meet vagina-to-vagina (also known as scissoring) and the male inserts his penis into the center; so named the guillotine because his 'head' gets cutoff by the scissors.

I lost my crucial head to a guillotine with two skeezers I took home from the bar last night.

Guillotine by Joey_330ci July 25, 2010

Guillotine 

Extreme woman muffin top that you need to lift up when you wanna engage in sexual intercourse with a ginormous rhino of a chick. When that muffin top flops back down after insertion, it basically does to your dick what a guillotine used to do to people's heads.

George: "whatsup dude how's your penis?"

Tom: "Not too good man, last night I fucked this bitch while I was really drunk and she definitely was packin the guillotine"

Guillotine by lil bastard December 14, 2010

Guillotine 

a prank when you are over a friends house, and you call his girlfriend and tell her he wants a blowjob, then hide in the closet. when she is sucking his cock, you jump out of the closet naked and surprise her, causing her to bite down on your friend's dick.

wow that guillotine left a mark on my dick for months

Guillotine by Mr. Skin Flute696969pecansandy March 17, 2009

Guillotine 

A submission often seen in no-gi bjj or MMA; also great for self-defence.

The rugby kid leg tackled me with his head down.... I just whipped in a guillotine and choked that jock out.

Guillotine by RRJHK November 13, 2012

Guillotine 

A beautiful device used to behead tens of thousands of revolutionary scum during the French Revolution and the reign of daddy Maxamilien Robespierre.

Wow, it's so great how our benevolent leader Robespierre is so selflessly cleansing France of the filthy counterrevolutionaries with his guillotine so we can live in the Republic of Virtue!

Guillotine by tired and angry February 26, 2018

guillotine 

v. to hide a boner putting your penis in the natural/straight-up position. The penis log is well hidden and unnoticed, but the head exceeds the part where your belt fits...if someone lifts your shirt, they'll see your head saying hi

i had to guillotine my penis so my teacher didn't notice my boner when he asked me to pass up to the blackoboard...

guillotine by Puhercules May 8, 2010