Dwayne Johnson wears a fanny pack throughout the movie, and the film makes multiple comedic references to it. This is a reference to a popular meme, which shows Johnson wearing a fanny pack in the 90s.
In one scene, Dwayne Johnson's character makes a reference to both the movie Pitch Black (2000) and its lead actor Vin Diesel. Both Vin Diesel and Dwayne Johnson have appeared together in the last three out of seven Fast and Furious films.
Calvin cons the airport security guard with a story about a woman who cuts off her husband's manhood, drives off with it, then throws it out of the window. This is a reference to a 1993 incident that made national headlines regarding Lorena Bobbitt cutting off the manhood of her husband John Wayne Bobbitt.
Megan Park, the waitress at the beginning of the movie, tells Bob she hopes he's Catholic. This is a reference to a show she starred in called "The Secret Life of an American Teenager" where she was also a Catholic.