Afterbum

When you sit on a seat someone else has been sitting on recently, and it's still warm. Also known as seat heat. (Ew!)

Bill: Why aren't you sitting down?
Joe: The seat is still warm - I think someone sat here before me...
Bill: Ew, gross, I wouldn't sit on a chair with afterbum...

by Elcibieties September 16, 2010

Afterbum

The warmth you feel on the toilet seat after someone else used it.

The afterbum was a nice surprise on a cold morning.

by Notn_much December 5, 2021