Ghetto Golf is a planned downloadable tile being created by Illfonic, a game studio founded by one of the guys from Tony! Toni! Tone! Also, this line is in MTV Multiplayer's article about the game: "One of the playable scenes they showed involved the hero Vonte needing to use his exploding golf ball to blow up a car that someone was ghost-riding."
... Honestly, what are we supposed to do with that?