Manitoba Snowplow 

A sexual act in which you are giving a girl anal and then push her arms out from under her and hump her across the floor.

I manitoba snowplowed this girl so far she got carpet burn!

Manitoba Snowplow by xkenx January 6, 2007

Manitoba Snowblower 

A depraved sex act that is not clearly understood outside of the province of Manitoba. What is known is it involves a case of Labatt Blue, a short stool, and some sort of animal pelt (usually deer, but bear is also common). Despite its popularity, it remains one of the leading causes of death in rural Canada.

"You found some Manitoba Snowblower porn? Bill, you sick puppy. This is gonna be interesting."

Manitoba Snowblower by Canadaphiler March 26, 2010