Dirnt is a "Star Wars" fan; he stated jokingly in an interview that he bases "most of his religious beliefs" on "Star Wars". His birthday is on Star Wars Day. Dirnt's favorite bass player was Cliff Burton. He is a part owner of Rudy's Can't Fail Cafe, a diner in Emeryville and Oakland. The diner was named after a song by punk rock band the Clash, "Rudie Can't Fail", from their album "London Calling". The menu item names are loosely based on punk themes such as "God Save the Chicken", a reference to "God Save the Queen" by the Sex Pistols, and "Give 'Em Enough Meatloaf", a reference to "Give 'Em Enough Rope" by the Clash.