Longman Dictionary of Contemporary English
The Collaborative International Dictionary
pissed \pissed\, pissed off \pissed off\, a. Angered or very annoyed. [vulgar]
Wiktionary
(context idiomatic vulgar colloquial English) annoyed, upset, angry. (from mid-20th c.) v
(en-pastpiss off)
WordNet
adj. aroused to impatience or anger; "made an irritated gesture"; "feeling nettled from the constant teasing"; "peeved about being left out"; "felt really pissed at her snootiness"; "riled no end by his lies"; "roiled by the delay" [syn: annoyed, irritated, miffed, nettled, peeved, pissed, riled, roiled, steamed, stunng]
Usage examples of "pissed off".
It was the smile I got when I'd been pissed off too much and I'd finally decided to do something about it.
I saw that it was my job to make her a little happier than she was and not to get pissed off when she didn’.
They'll tell you how dirty he was, how many people he pissed off, and how many suspects you've got.
Also, some of the blokes are pretty pissed off and are calling him a yellow-belly.
I might have been pissed off, but we were in a kind of fighting that I knew almost nothing about.
He stood, and I didn't mind, though once upon a time I'd pissed off a prom date by standing every time that he did for the other girls at the table.
At this point Avi does something that Randy's never seen him do, or even come close to doing, before: he gets pissed off.