Cussterbating 

The act of swearing as you masturbate furiously.

"I heard him cussterbating last night again. I didn't get any sleep for hours."

Cussterbating by Race Pro Kid November 13, 2013

classterbating 

Classterbation: The art of girls crossing their thighs over their pussy and flexing their thigh muscles, which scrapes their jeans over their clit.

Twiggy: Yo, did you see Aubrey classterbating in Chemistry?

Zach: Yeah, she was sweating like a whore in church.

classterbating by Twiggy Lanky Man April 10, 2008

consterbating 

The act of or fulfilling one's own desire to forcefully withdrawal a brown dragon while playfully caressing the penile shaft.

Anthony: So, you think John's consterbating in there??
Dustin: Smells like it.
Anthony: Well, it can't be too painful, he's got a porn mag in his hand.

consterbating by John's mother April 2, 2007

Classterbating. 

To jack off in class, if you go to a LAP TOP school, and you sit in the back, have a party!

When you shake your dick in class, to a porno on your laptop, its Classterbating.

Classterbating. by TiGGLE BiDDY March 10, 2010

Classterbating 

Masterbating in a school class or other meeting with peers

Dude, Joe was totally Classterbating in science yesterday!

Classterbating by Hater Hater gettin Taters April 4, 2015