In a car, a seat heater that roasts your ass to the point where you think your cheeks are going to melt together.
friend - "Holy crap, dude, my new car has seat warmers, and they're total butt-welders!"
a situation where a group of people usually males are packed into a small space and end up extremely close together
Everyone in this elevator is nut to butt.
A persons back side which is shaped somewhat like a shovel; a flatt ass; or a long droopy ass.
Yo! That chick does't have an ass, she has a shovel butt!
1) Perfectly formed ass
2) The most wonderfult thing in the world.
3) Proof that God exists.
The girl that's interested in you has a tight body, with a real nice bubble-butt.
"I ate a carne asada burrito and had to make a massive butt noodle. It was nice and al dente"
One who explores the deepest,darkest recesses of someone's crap cave.
As I went butt spelunking in Suzy, I think I shot a wad into her upper intestinal tract.
Service industry related buttock chafing as a result of humid and hot conditions whilst waiting tables. Scientific documentation of waitress butt has yet to be proven, as females are less likely to discuss such an ailment.
Add'l info: Bartenders don't get waiter butt, since they don't do as much walking. Sucks to be a waiter, eh?
"Have you seen Dave? He just got double sat."
"I just saw him in the kitchen getting some corn starch."
"Oh, he's been walking like a duck all night.
"Waiter butt will do that to you."
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(snapping) "WAITER! Can we get some more free rolls?"
"I'm baking some in my ass (due to the heat of waiter butt). They'll be done in two minutes."