(v) Masturbating. Whilst you masturbate, your hand may impact your testicles which share a similar shape to that of a speed bag.
After seeing those Sophie Howard pics, I felt the need to start punching the speed bag.
Two of the best things on the planet. Each can be enjoyed on it's own, or combined for one awesome night of awesomeness!
Bob:"Whatcha up to tonight, Steve?"
Steve:"I'm gonna hit up Cocomo's for some titties and beer. Wanna come?"
Bob:"Fuck yea! Let's go!"
Masturbating. Spanking the monkey. Jerkin' it.
I don't know why people have to 'beat around the bush' when defining this word. Spankin' it is masturbating.