1. Verb : To represent something spectacular, a series of good fortune.
2. Noun : A name given to one who has shown him/herself to be cool; "legit person"
Person 1: What did you do this weekend?
Person 2: I went to a party, kicked it with some females, rollin in the bimmer and was downtown the whole weekend!
Person 1: J-Mint!
Person 1 to Person 2: "Yo that club was J-Mint!!!"