a mountain dew is when you shit on someones chest and make a mountain, then piss on top of the mountain to cause it to make a land slide, this is known as the mountain dew.
I just took a mountain dew on your mom, man!
by Yardo September 22, 2006
Get the mountain dew mug.
The act of shooting one's sperm in a projectile fashion down a girl's throat, so as not to get STD's, much like waterfalling for water bottles.
Dude, Bobby had the clap so he was mountain dewing Caitlyn last weekend. I wonder if he hit the bullseye?
by Pete Zahutt May 22, 2007
Get the mountain dewing mug.
When sweat runs in between a girl's boobs.
Becky: It's so hot out!
Jen: I know I'm mountain dewing!
by SlothzRuleBitch. June 1, 2013
Get the mountain dewing mug.
The birth of a retarded child due to a male drinking to much Mountain Dew causing decreased sperm health.
Urban Legend says that if a male drinks to much Mountain Dew it can cause decreased sperm health and overall amount.
Guy1: Hey did you hear about Chris's newborn

Guy2: Yeah I did, it so sad that it’s a Mountain Dew baby.

Guy1: Right, I told him to lay off the Soda.
by Richierich7896 October 3, 2017
Get the Mountain Dew Baby mug.
A gnarly set of jacked up teeth.

Predominant in Kentucky, Northern GA, North and South Carolina. Rampant in the Appalachian region due to over indulgence in the sugar infested beverage.
Have you seen that girl from Appalachia?
She must have drank too much soda pop as a kid because she has Mountain Dew Mouth. Her teeth are gnarly dude.

Eeew. Man...when is the last time you went to the dentist?
Why?
Your teeth are jacked up dude. You have Mountain Dew Mouth.

by FergiFerg020608 February 17, 2009
Get the Mountain Dew Mouth mug.
The diet of the dankest of the mlg pros
Dude, im 3 l3g1t 5 u, just had my doritos and mountain dew, ready 2 pwn deez scrubs m8
by CAlonghair January 21, 2016
Get the doritos and mountain dew mug.