look up any word, like the eiffel tower:
 
1.
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"
by Razz888888 March 14, 2009
 
2.
To take a piss
Hey man where did you go.

I just went to Rock a piss
by Aggy117 May 22, 2009