butt cushion 

An donut-shaped apparatus used to sit on after someone has injured their tailbone, usually of the inflatable variety.

Josh has to sit on a butt cushion because Brigg kneed him in the tailbone.

butt cushion by bruised spine October 3, 2003

butt-cushion

its literally just a chair did you have to look this up?

dave: hey can you pass me a butt-cushion?
chair flies across the room.

butt-cushion by a pimp named scooby dooby doo February 23, 2021

butt-cushion

a chair

"hey can yuou pass me a butt-cushion?"
chair flies across the room

butt-cushion by a pimp named scooby dooby doo February 23, 2021

butt cushion boy 

one who sits on a green buttcushion and says it is because it's for good posture, yet we all know he has a sensitive tush.

He is buttcushion boy!

butt cushion boy by some1 January 26, 2004

ButtCussion 

ButtCussion: Severe fall landing directly on one's posterior axis, causing severe pain to the point of nausea - as in a "concussion of the butt." Falling and landing directly on the gluteus maximus or worse, a direct blow to the coccyx, with pain so severe that it causes concussion-like symptoms.

He jumped up into the air over the frozen swimming pool, cannonball-style with ass pointed down and knees up, thinking the ice would break and he would polar bear it but the ice did not break - Total Buttcussion!!

ButtCussion by AWarrenP November 8, 2012