To be in a class so boring that you take your non-dominant ( or dominant) hand and reach into your pants pocket and proceed to stimulate your genitals.
Matt: Dude that class was so boring, I just classturbated the whole time.

Nadsack: Me too. Classturbation helps with my tourettes.
by cockjuggling thundercunt March 21, 2009
To be so bored during a class that you secretly reach your non-dominant ( or dominant) hand into your pant pocket and proceed to stimulate your genitals.
Matt: "Dude that class was so boring, I just classturbated the whole time."

Nadsack: "Me too, classturbation helps with my tourette's."
by Dustin Englhart March 21, 2009
1) to covertly masturbate in school.

2) a class which teaches you nothing and serves no scholastic goal.
this human sexuality course is pure classturbation, in more ways than one.
by the moody booze July 11, 2008

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