Rectals 

a.k.a. Sliders. A greesy late night mini-hamburger, most likely purchased from White Castle, usually causing severe pelvic discomfort and bowel instability when consumed.

Man, I'm drunk and it doesn't look like I'm gonna get laid, let's go get some rectals!

Rectals by B. Miller October 22, 2003

Rectalgia 

Rectalgia is a medical term meaning a pain in the rectum. You can see where this is going, it can be usefully applied to people who are a pain in the arse, you know the WOSPs, Malcolms and fuckwits of the world. See also pygalgia.

There are some people whose mere existence causes acute rectalgia.

Rectalgia by AKACroatalin February 23, 2017

Rectal Reptile

A huge turd, comprising nearly the entire contents of the large intestine, that gets deposited in one piece and coils around the bowl a few times.

Guess I'm eating enough fiber, 'cause I almost clogged the damn toilet with that rectal reptile!

Rectal Reptile by Phuqit October 9, 2006

rectal health day 

To stay home from work or school due to the high probability that a torrent of liquid awfulness will be expelled from your bowels involuntarily and without warning.

Even though I took a rectal health day from work, I still had to attend a web conference on my iPhone from the shitter.

rectal health day by Bogrimm May 4, 2018

rectal rocketry

The study of the propulsion of objects due to flatulence.

After the chili dinner, the engineering team had the opportunity to study rectal rocketry!

rectal rocketry by I, Wreckerrr January 3, 2017

Rectal rental

Paying for anal sex.

There are some rectal rental types in the parking lot behind the bar!

Rectal rental by I, Wreckerrr November 2, 2016

rectal painting 

Practical joke where several people eat foods that give them diarrhea and they go out and try to spray fecal matter from out of their anus on to the houses of the chosen target of the joke.

It was the night before Halloween. Ben and his friends decided to embrace the new devil's night fad. Instead of going with the tired and old toilet papering of people's houses; they were going to do some rectal painting of people's houses. Unfortunately they forgot the toilet paper and Ben found himself running from the cops with shitty underwear and some greasy cheeks.

rectal painting by Nutzen YerMouf February 21, 2018