Top Definition
The sport of urinating on a derelicts. Considered a charitable deed in cold regions.
I am going bum washing, as soon as I get done with this definition.
by Pocono Joe December 12, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×