Top Definition
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.
by Joe Billy Barew September 07, 2005
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.
by Billy Baru August 18, 2005

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