"Would you guys consider jacking off to be a sport?" "Yes."
Something my old teacher said when he meant messing around
Teacher:"quit jacking off Charlie and get a book out"
When you get a gang of blokes, all called Jack, to ambush someone, usually using violence
"I found that bloke who double-crossed you and sent Jack, Jack, Jack, Jack, Jack, Jack and Jack to go and give him a good jacking off"
Jack off revenge: Turn your head to the side then jack off because you dont want to look at your girl.
I couldnt stand looking at my girl in my side bed because she doesnt want to fuck me. So i pulled a jack off revenge. I jacked off looking the other way so i dont have to see her and superman her.