Piss is a versatile word.
You can take a piss.
You can get pissed off,
Or pissed on, if you're into that.
You can tell someone to piss off,
Or to go piss in their hat.
You can be full of piss.
You can even piss out your ass.
One day you might be pissy,
And have a pissy fit.
You might even be angry,
And just yell piss.
You could get in a pissing match,
And piss yourself laughing,
Because he called you a little pisser.
Well he can go fuck himself.