You can get this mission towards the end of the main story of the DLC (or after finishing it) from C3ns0r807 in the Refinery. The mission has you going to find and kill a DJ who uses a lot of profanity. This man's name is DJ and when you encounter him, his name displays as "DJ Tanner". This is very likely a reference to the late 80's, early 90's family sitcom Full House.
The show is about life in the Tanner household where the father Danny is an anchor on a very tame (even boring) morning news show. One of his daughters is named DJ Tanner.