side slash 

Any girl you fuck on the side besides your girlfriend.

The old bar down the street is good for huntin side slash if your ever bored with your girl.

side slash by Kadoo34 November 14, 2009

sideslosh 

A sideline that is so embarrassing, that you wouldn't even want you wouldn't even admit to it in a confessional.

My sideslosh is so fugly, Charlie Sheen wouldn't even fuck them.

sideslosh by Jennanightmare July 12, 2015