Beating your dick, means to masterbate one's penor. It is something we say in Pennsylvania, and almost everyone says it.

It also means to slack off, and we say that here a lot.
When I get REALLY HORNY, I just gotta beat my dick!

He should be doing his homework, but instead he's just sitting around beating his dick(slacking off).

I love beating my dick, it feels so good to release the poon.
by Porner Brothers December 14, 2011
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