Human Bidet 

When someone spits saliva or urine into another persons butthole.

Make sure you use the human bidet after you take a dump.

Human Bidet by BeBuc May 25, 2011

Human Grindipede 

When multiple people in a line rub their gentials against the person in front of them's rear, while placing their hands near or on said person's hips.

Another term for grind train.

"Did you see the human grindipede at homecoming? There must have been at least twenty-five people in that thing!"

"Oh, dude, I got such a raging stiffy in that human grindipede with Jessica, you don't even know..."

Human Grindipede by sexytacoman September 22, 2011

Human Lobsterism 

The "Boiled alive" effect of high pressure, high temperature steam bursting into a confined space and searing the skin off the personnel in said space. Occurs mainly on board vessels, where less than intelligent choices are made that result in human lobsterism. Related to the cooking process of lobsters, who are boiled alive and cooked to a tender perfection. You will want to avoid steamy baths at ALL TIMES.

After a screaming metal sound rings throughout the engine room...
MMC King: WHAT THE HELL HAPPENED IN THERE

EM2 Calvert: I don't know! We were playing Wizards and ET2 Hansen cast a lightning bolt at me to I threw a wrench at him... Then he picked it up and started using it to loosen stuff... he said he was casting "Steam Jet"

MMC King: You FUCKING WIZARDS WHAT DID I TELL YOU ABOUT TOUCHING ANYTHING THAT LOOKS TOO HEAVY FOR YOU TO LIFT? HE LIKELY EXPERIENCED HUMAN LOBSTERISM! Do you have ANY idea how much paperwork I'll have to do?

Human Lobsterism by Nuclear Ordinance February 27, 2012

Human Donut 

A person who's head is so far up their own ass that they become donut shaped.

"Dude, David is so annoying. He just finished reading The Stranger and now he won't shut up about how life is meaningless. The worst part is he talks about this bullshit like he invented it."

"Yeah man, he's becoming a human donut."

Human Donut by Atom Smasher August 6, 2014

human tank 

A person who can take inhuman amounts of damage and come out of it fine.

While not human a good example would be a machine called a terminator from the Terminator movie series. how the machine takes damage and continues moving forward. An example of a human tank ,if you want to see humans who are like this go watch any mainstream anime. Ex (bleach, naruto, DBZ, fairy tail, one piece)

human tank by Kyle crow September 19, 2016

Human Centipede 

A sex position where most often gay men get in a line and each one sticks their penis in the buttocks of the person in front of them.

You’re so gay you get in a Human Centipede ten times a day.

Human Centipede by Zay47 June 10, 2018

Human butterfly 

When you press your anus against a willing participant’s anus and shit with such force that the excrement goes inside of the second party. The two stand in a way so that the group’s shadow looks like a butterfly.

My partner and I wanted to try the human butterfly, but my balance is horrible.

Human butterfly by Motorpatrol August 1, 2019