sky fork 

A leisurely position assumed when an individual lying on a couch lifts one leg in the air and rests it on the couch's backrest, effectively forming a "fork" with his legs. To form a true sky fork, an individual should be positioned in the 90 degree angle formed by two wings of an L-shaped couch. 31.7% of women get seriously turned on when they see a guy doing a sky fork.

He fell asleep pulling a sky fork on the couch and awoke a couple hours later to some random girl giving him a blow job. She told him after she was done that whenever she see a guy doing a sky fork, she can't resist unzipping his pants and sucking his dick.

sky fork by phaus4life October 1, 2009

Fork In the Sky 

a rare occurance; a random event. Always positive.

It's a real fork in the sky to find three $100 bills in one day, just lying around.

Seeing a band like The Arcade Fire at such a tiny venue if a real fork in the sky.

Fork In the Sky by Optical Study February 22, 2007