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1.
When your girl is on all fours and your doing her doggystyle, knock her arms out from under her and ride her off the side of the bed.
"hey Heather, wanna go snowmobiling later on? it'll be losts of fun"
by Pete September 03, 2003
 
2.
Usually refers to a situation where a male is "doing" a female from behind at the top of a flight of stairs. Just before ejaculating, he pushes his partner's arms out from under her, and rides her down the stairs.

A good way to get out of a bad relationship.
Man, I was doing Julie at the top of the stairs last night, and I suddenly decided to snowmobile her. It was pretty sweet.

Dude, I think the cops are at the door.

Shit. I think I might've killed her.
by Lefty Lanford August 15, 2006
 
3.
When doing a girl from behind, you sweep her arms out from under her so that her head hits the floor. You then grab her wrist, pull her arms behind her back and act like your stearing a snowmobile.
That @sshole Chuck was making stupid motor sounds when he gave me a snow mobile last night.
by Richard Speck September 21, 2005
 
4.
An off-road vehicle (OAV) designed and intended for use upon snow in regions which get substantial amounts of snowfall
They have one safety mechanism and almost anyone can learn to drive one, supposing he is
a) over the age of 14 and
b) he has both hands

They are also known as sleds
Dude, did you see Rick's new snowmobile? It's awesome!
by the schniz August 05, 2008
 
5.
1. When you are pounding a hot hoe in the rear, and then you ride her down the stairs.
Bitch you just got... SNOWMOBILED! (slap)
by Standford August 14, 2006
 
6.
knocking her arms out from underneath her while doing it doggy-style
i gave her the snowmobile last night when i was drunk.
by ryan January 15, 2003
 
7.
An 80's nickname given to John DeLoran's DMC-12 sports car, as John DeLorean was a noted Coke Addict.
Dude, I saw a snowmobile in the parking lot at work today!
by Phschallenger August 21, 2007