pissy /ˈpɪsi/ adjective6 •(slang, vulgar) Soaked or dirtied by urine.David's father immediately threw his baby's pissy clothes into the wash. •(slang, vulgar) 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. •(slang, vulgar) Annoyed; angry; in a bad mood; pissed off. •(slang, vulgar) Resembling or smelling like urine.I admit the car still has a pissy smell from what happened last year. •(slang, vulgar) Worthless; crappy. •(slang, vulgar) Weak and drizzly.I wish these pissy rain showers would either build up into a storm or go away. formspissier · pissiest