Buttblast paradox 

A situation involving a giant bowel movement that is contradictory and puzzling.

Kevin loved Taylor Swift but he couldn’t find anywhere to have a big shit at her crowded concert. If he couldn’t shit soon he felt like he was going to die. It was a buttblast paradox.

Buttblast paradox by Summer of Chris August 14, 2019

Kamikaze buttblast 

The act of dressing up as dragon ball z character, goku, while penetrating an anus and therefor releasing his high fructose porn syrup inside the rectal cavity.

"Hey, did you see Ruth last night?"

"Yeah, I kamikaze buttblasted that phanny after I went super saiyan."

"So, you emptied the dragon balls,huh?"

Kamikaze buttblast by Poopid69 January 27, 2017

butterblast 

When it's been an extremely long time since intercourse and the resultant build-up produces a discharge resembling a fire hose connected to a vat of sour cream.

Obadiah : Last night was incredible !

Amos : How so ?

Obadiah : It's been eleven years since I had sex with a live woman, and last night I had a butterblast that blew a hooker out a window. I got laid AND I didn't have to pay.

butterblast by Dragonwolf November 8, 2018

Penis Butt Blast 

An action performed during anal sex. Describes the act of climaxing into a butt so hard that your penis shoots out similar to a bottle rocket

"I gave Kimmy the ole' Penis Butt Blast last night. Sent my cock the moon and back my guy."

Penis Butt Blast by BigBoiBuss October 14, 2021

Buttastic 

1) the combination of Butt and Fantastic, describing something that is fantastic related to the rear of the body.
2)a term of hilarity

1) Those pants are buttastic
2) the buttastic ideas of scientists today that are killing us all.

Buttastic by lepouf April 8, 2010

buttbuster 

large dick, usually on a gay guy who is top (like to fuck another guy)

my ass is so sore right now, this guy have a real buttbuster in his pants

buttbuster by stephane June 21, 2007

buttflustered 

To become ridiculously overoutraged over some seriously petty, picayune shit.

Sheldon gets all buttflustered whenever someone takes his space on the couch.

buttflustered by Charlie Chan November 3, 2013