Bunscathing 

The act of scraping or burning (as in a rug burn) one's butt. Especially pertinent while riding down rough slides.

"That slide was particularly bunscathing!" exclaimed Tony.
"Well, riding down a cheese grater slide naked will surely tear your bun to pieces," declared Susan.

Bunscathing by Joe Billy Barew September 23, 2005

bunscathing 

The act of scathing one's buns on a rough surface. It is especially painful when occuring naked.

"That was quite a bunscathing ride," said Johny after riding naked down a water slide with many ridges.

bunscathing by Billy Baru September 7, 2005

bunrathing 

The act or making sexual comments and/or telling a group of people including your boss you are going to get drunk

I was bunrathing a girl last night

bunrathing by Doofus69 January 1, 2014