Getting pissed drunk and roudy, most commonly while skating.
1:Brah u tryina go sheepside and get pyst?
2:fuck ya hook it n loop um!
3:FUCKIN PYST!
Another word meaning "having uranated".
Josh pyst himself after he had coffee penus and couldn't get to the toliet in time.
Very angry at somebody or something; it means the same (and is pronounced the same) as "pissed off".
Man I was so pyst off at that bunghole for stealing my towels out of the dryer at the laundromat!!!