An donut-shaped apparatus used to sit on after someone has injured their tailbone, usually of the inflatable variety.
by bruised spine October 03, 2003

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!
by some1 January 26, 2004

a chair
by a pimp named scooby dooby doo February 23, 2021

by a pimp named scooby dooby doo February 23, 2021
