"Piss nigga" is a term used for someone you dislike. It means that they screw around and piss people off commonly, and are in general an annoyance to everyone they associate with, aside from other people like them.
by Dill.stl March 14, 2018
an expression of frustration, like "fuck, shit, or dammit". Expressing such the frustration you would feel if you found that one of your friends or "niggas" had taken a piss on something of value.
She cheated on me! NIGGA PISS!
by which doctor beardo? October 24, 2010