Top Definition
This is someone who only masturbates in class because the teacher is so fuckin hot or two girls are messing around when the teacher is gone, but most likely that the person gets hard and feels like they should finifh the job.
"I can't fuckin study whith that kid in the back of the room being a class beater."
by K-DO6 May 23, 2006
5 Words related to Class Beater

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