Luke Skywalking 

Getting a handjob while riding on a roller coaster where your feet dangle. When you are climaxing, kicking your legs furiously as if you were walking on the sky.

Man, were you scared on that ride, your legs were kicking all over the place?

No way bro, Kelly gave me a quick handie, I was Luke Skywalking.

Luke Skywalking by sanfred December 17, 2010

luke skywalkering 

When you have sex with someone and a few day later you find out you are siblings

I didn't purposely go Luke Skywalkering.

luke skywalkering by The Little Einsteins April 20, 2017