3ni
Short for the term "trinitario", a Dominican based gang found mainly in NJ and NY.
Ke lo que loko, 3ni all day
3ni
3ni is just another way to say trini (trinidadian). the way their accents are, pronounce the number "three" as "tree" so put them together and its "tree-ni" or "trini"
person 1: "hey, whats your nationality?"
person 2: "am 3ni baby"
person 2: "am 3ni baby"