1. when somebody is mad or angry over something stupid
2. when your peeing out of control
1. "my arse hurts"
"SHUT UP STOP YOUR BITCHING ABOUT IT GOOOOOOD YOUR BEING SO FAGADOCIOUS."
...later on in the day...
" why do you have to be so pissy about it! "
2." OMG I DIDNT MAKE IT TO THE WASHROOM IN TIME, IM SO PISSY,
TODAY I CANT CONTROL MY PEE ITS JUST FLYING EVERYWHERE NON STOP! SOMEONE CALL 911 :o "
A pissy is a person who is very annoying and sometimes you just look at them and wanna punch them. That person may also drink and drive at the same time. He or she may also be in jail.