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.

by TiGGLE BiDDY March 10, 2010

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.

by Twiggy Lanky Man April 10, 2008

Classterbation

When one gets the sudden urge to bust a nut midway through class. Normally applicable when there is a sexy female in the area.

Student 1: Hey man, did you see that new girl? she was wearing a skirt and i classterbated after i saw her!
Student 2: Dude.... gross.. Classterbation is disturbing.

by NutBustah April 13, 2011

classterbation

Masterbating with the pinky out.

I was at a high brow function and classterbation was in order.... Masterbation with the pinky out!

by Jujuwee May 7, 2017

Classterbation

The act of masterbation in class

Isaac enjoys classterbation

by Klukluxklandrud May 29, 2018

Classterbating

Masterbating in a school class or other meeting with peers

Dude, Joe was totally Classterbating in science yesterday!

by Hater Hater gettin Taters April 4, 2015