When someone who recently had unprotected sex douches using Mountain Dew hoping that the yellow 5 will kill the sperm.
Elizabeth: I can't believe I didn't use protection.
Julie: Don't worry, you should try mountain douching.
Julie: Don't worry, you should try mountain douching.
by Anhydrous-Caffeine February 25, 2011
by Mr. Dickass February 03, 2007
A Douchebag who loves climbing, wearing clothes purchaced from REI, and generally has an outdoorsy air about him.
by Most Of The Sun August 25, 2010
1. I'm going to dedicate the song "Mountain Douche" to my ex, because he IS a mountain douche.
2. Check out the mountain douche to your right.
2. Check out the mountain douche to your right.
by shitstain4 April 16, 2010
A person who so completely embodies douchebaggery, that he or she can be said to be the pinnacle of douches, in otherwords a "Douche Mountain."
by Small Peanuts February 26, 2011