To eliminate a hard-on (go limp) by peeing instead of ejaculation. This is disappointing to men, so they don't want to go to the bathroom and piss off their hard-on. Then then say they are pissed off, or angry about it.
It has become slang for making someone angry or when something or someone makes a person angry.
Today, women have picked up on this term also, using it as getting angry (but not about their hard-on going away).
I love my errection, but when I go pee it will piss off (original usage).
He is going to piss me off (modern).
I was very pissed off when my definition for Kiss My Shiny Metal Ass was rejected for the third time, despite the fact that there was nothing wrong with it. I read why it might not of been posted, and nothing was wrong with it!
By Lilllie
Pissed Off
1. Feeling like you can kill everyone in 1000 mile radius.
2. When your eyes bulge out and steam comes out from your ear.
1. That dude over there stole my girlfriend. I'm SO pissed off!
