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1.
The term or phrase expressing ones feelings towards something or someone. It was truly made legendary by youtube star Kingsley, normally expressed with a frustrated or angry and a wide eyed expression.
Person 1: I didn't like Eastenders last week, the storyline made me feel HELLA PISSED!

Person 2: I liked it.
by stopfronting1234 January 11, 2012
 
2.
really really mad. angry beyond belief. ticked off
Fuck Fat Joe. He didn't come to Radford. Sarah was hellapissed.
by Tara T. Barnes. April 01, 2005