noun
pisser
PIS-er/ˈpɪsər/
An annoying or disappointing thing.
Having a party horn blown beside her ear is a real pisser.

Etymology
The slang sense developed from an extraordinary person or thing toward one that is extraordinarily unpleasant. The selected meaning emphasizes that negative turn: someone or something intensely annoying.
More examples
- It's a real pisser when the power fails halfway through dinner.
- That extra fee is a pisser, but we still need the tickets.
- Flat tires are pissers, especially when you're already running late.
Forms
pisser · pissers