Definitions by NickOnInsanity

x-wing 

A sexual position wherein the receiving partner is laying on his or her back with their legs spread up in the air in a wide angle (not horizontal). The giving partner has his or her legs spread in the same angle as he or she penetrates the other*.

The resulting position looks like an X-Wing fighter from Star Wars.

*Yes females can penetrate so long as they have a strap-on.

And x-wing looks like this >::<

x-wing by NickOnInsanity March 8, 2009