Slippery When Ill is the second album by the Huntington Beach punk rock band The Vandals, released jointly in 1989 by Restless Records and . It was their first album to include Dave Quackenbush on vocals, who would remain the band's singer for the rest of their career. The album was something of a departure from the punk rock formula of their previous releases, fusing a country and western style with their humorous brand of punk. The result was a sound the band called "cow punk" which somewhat mocked the resurgence in popularity of country music in their native Huntington Beach. Two exceptions were the songs "Shi'ite Punk" and "(Illa Zilla) Lady Killa," which relied heavily on scratch boxes. The latter song was a re-recording of the song "Ladykiller" from the band's previous album When in