Slippery Doorknob
Where a man or women puts a mass amount of lube on their fist and the other man or women then proceeds to sit on that fist while it glides gently up their booty.
Curt: My buttholes feeling a little tight right now.
Austin: Well I can fix that right up with a slippery doorknob!
Austin: Well I can fix that right up with a slippery doorknob!
slippery doorknob
A slippery doorknob is the prank, when you put a doorknob up your anus and then you stand back and watch people use it.
Online, I watch videos of people preforming a slippery doorknob, it is funny.