Covered in urine.
Resembling or smelling like urine.
Anal retentive, whinging and pernickety.
Stop being pissy: you knew what I meant when I said "Don't touch the dial", but you prodded the dial with a fork.
(of rain) Weak and drizzly.
I wish these pissy rain showers would either build up into a storm or go away.
Angry, in a bad mood (see pissed off)