Joisy
The pronunciation of 'Jersy' (refers to New Jersey) used by those who are making fun of someone or something from Jersey. Or maybe just the entire god damn state
Person 1: So where are you from
Person 2: New Jersey.
Person 1: Ooohhhh.... JOISY
Person 2: Fuck you.
Person 2: New Jersey.
Person 1: Ooohhhh.... JOISY
Person 2: Fuck you.