Valby lives up to his nickname "Dr. Dirty". His songs and shows focus mainly on sex and racial slurs, with a mix of current and historic people and events. Many of the songs sung by Valby are drinking songs like Ya, Ya, Ya (aka limericks), Roll Your Leg Over, Barnacle Bill, etc. See Richard Reuss' master thesis and Ed Cray's Erotic Muse for further examples.