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1. Rock a piss
Meaning: To go to the bathroom and pee.
We were at a party when my buddy said " I need to go rock a piss real quick"
2. Rock a piss
To take a piss
Hey man where did you go.

I just went to Rock a piss
piss rock now yes boom
by Aggy117 May 22, 2009 add a video
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