Zacking off is the act of masturbating in the shower using kiddy porn downloaded to an ipod or any other mobile video device. The device is usually placed in a ziplock bag to avoid water damage and being contaminated with bodily fluids.
Lee: Why does Zack always bring his phone with him to the shower?
Danny: Yea, I'm curious too since he takes 45 minutes to take a shower.
Lee: you think he's jacking off in there?
Danny: His name is Zack not Jack dumby.
Lee: I meant do you think he's zacking off in there?
Danny: haha yea i keep hearing weird moans coming from the bathroom and when he comes out he has the look of satisfactied on his face. He needs to wipe that smirk off.
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