Universal word for cool, tight (have to add bro after the word) , or super chill (have to add bra after the word). But can also mean bad, or horrible but you have to have man followed behind the word.
Cool- I got the new Psp. Aww man that's triflyn.
Tight- How does this shirt look on me? It's triflyn bro.
super chill- Man you want to have a triflyn session today?
bad- You want to go to your ex-girlfriends house? Nooo, thats triflyn man.