Ski Jumper 

A position in the shower where a person pulls their ass cheeks apart to rinse all of the soap out of their ass crack. The position is eerily similar to that of an olympic ski jumper.

I did the ski jumper this morning in the shower.

Ski Jumper by Josh Coiner October 16, 2008

Skilumper 

The sucker you make carry your skis

-"I thought you hated that guy, why'd you invite him along?"
-"Oh, he's our skilumper."

Skilumper by BIGjava February 6, 2012