What is Hyfy?
1.
(Adj) The state of being Hyfy can either be good or bad.
1. Being extremely happy, excited, or anxious.
OR
2. Being extremely mad, pissed, angered, or frustrated.
(Good) A boy just got the best Christmas present ever, he is considered hyfy.
(Bad) Someone just lost a big game/bet and is in a very hostile mood, then he or she is considered hyfy.
(Bad) "Yo I'm about to knock this dude out, im so hyfy"
(Good) "I was so hyfy when I saw my new shoes"
See