Especially if you are sweating like a whore in church and screwing your face up as if you are constipated.
See also classturbation.
2. Oh Em Gee, are you classturbating?
3. Did you see that facial expression he made while he classturbated?
masturbating during class; most often by a guy, often creepy, with few exceptions.
The subject will most likely not know everyone does, though.
Girl: No, what about him?
Guy: In two days so far, he's classturbated in 7 classes!!
Girl: That's just creepy.
And the weird part, this is a true story.
And yes, a teacher will notice.
in this case, she has