Filthy Mountaineer 

An ugly prank played after camping with one's best friend or girlfriend and eating a generous amount of grilled hot dogs or Brats. The pair hike to a nearby summit (preferably one of 8000' or more). Once at the summit and both persons are ready to expel the winers, the prankster takes initiative to find a viewable open location to do the deed. The prankster drops his/her pants whilst yelling to the prankee to look towards their bare ass, which should then be blowing mud toward the prankee as they look over. Hence the Filthy Mountaineer.

We hiked and hiked. Suddenly, I really had to go shit so I dropped my pants in front of Cindy and gave her a Filthy mountaineer!

Filthy Mountaineer by J>C>B March 5, 2008

Filthy Finder 

A man or woman who finds the filthy when opportunity presents itself.

grab the "boys/ filthy finders" and lets go and get some filthies.

Filthy Finder by cuzzomike August 26, 2009

Filthy Trough 

When you pour lukewarm soup into a chick's vagina who is having her period, and then proceeds to consume the succulent stew.

Man I gave Claudia a Filthy Trough last month and the taste still hasn't got out of my mouth!

Filthy Trough by WeedThenWang November 4, 2009

filthy Phelps 

to blow a load on someone's face when they are wearing swimming goggles.

Ever since Nancy got that red eye, she's been afraid to take it on the face. now that she has goggles she wants the filthy Phelps all the time.

filthy Phelps by pee didddy May 7, 2010

filthy pierre 

the middle person in a three-person spooning session; making crotch-to-butt contact on both sides

"let's all spoon"

"i call filthy pierre!!"

filthy pierre by davep3rrett November 4, 2011

filthy release 

The combination of ejaculation and taking a dump at the exact same time during a blumpkin.

After a few minutes, I realize I'm about to blow it out of both ends...there it was, my first filthy release. It nearly shot her across the room.

filthy release by Tellydude September 20, 2016

Filthy Kevin 

The mixture of fruit punch and tequila

Bro that filthy Kevin had me so fucked up last night, I woke up halfway across nassau county wearing only a cowboy hat and my nikes

Filthy Kevin by Lilwaynefan101 October 23, 2019