Refers to metal-fabrication dat you are able to perform with just your own fart-gases due to their being so super-hot dat you can actually use them like a welding-torch.
I made da mistake of sitting on a stack of several nested chairs while chowing down on extra-spicy baked beans, cabbage stew, and hot wings at my buddy's backyard barbeque, and after some uproarious whizzpopping adventures, I ended up butt-welding da chairs together into one solid mass of metal tubing!
by QuacksO February 6, 2021
Get the butt-weldingmug. 
Another way to say 'Fireflies'
by Kindleyourloveagain November 30, 2020
Get the bright buttsmug. Butt diesel:
Noun
1) The dripping of shit that comes out of ones ass hole that smells like diesel.
2) The smell of diarrhea.
Noun
1) The dripping of shit that comes out of ones ass hole that smells like diesel.
2) The smell of diarrhea.
by Mammal February 5, 2018
Get the butt dieselmug. A genre of music that sings about one's butt. Examples include Baby got back by sir mix-a-lot, Anaconda by Nicki Minaj, All About That Bass by Meghan Trainor, and Country Girls (Shake it for Me) by Luke Bryan. It can widely vary in sound from rap to country. Trended a lot in the early to mid 2010's.
Person 1: "What's your favorite weird genre of music?"
Person 2: "Butt Music."
Person 1: "You find them attractive, don't you?"
Person 2: "Who doesn't?"
Person 1: "True."
Person 2: "Butt Music."
Person 1: "You find them attractive, don't you?"
Person 2: "Who doesn't?"
Person 1: "True."
by Bossboy28 April 20, 2025
Get the Butt Musicmug. by anonymous June 9, 2023
Get the butt tonsilsmug. Things boys are sexually attracted too although poop comes out of it. It is in rap videos too for some reason
by .Imp May 15, 2021
Get the Buttmug.