Any word you have to think twice about, don't use! There are so many other ways to express a feeling. ex: I'm gripped!, Man, why didn't I do that? I'm so grrrr! I'm peeved. try to be a little creative with the English language. If you are Pi**ed off,... chances are, people are already going to know and you don't have to tell. Breathe and think of a solution. You already know the problem! Good Luck! It's hard for me too, but I do! have a good day!
There are some places where it means drunk/drinking..."I got pissed last night at the pub" "pissing the night away". It's also slang for making someone feel small... "taking the piss out of me" In our country it's not a polite word but it's not a curse word either.