When Titus is trying to help Jacqueline get rid of Duke, he pretends his boyfriend "D'Fwan" has broken up with him. D'Fwan is the name of Tituss Burgess' character on 30 Rock.
Titus tells Duke he was a running back at Carl Lee Hailey High in Texas. Carl Lee Hailey is a fictional character in John Grisham's courtroom novel "A Time To Kill."