The Most Offensive Song Ever is the title of a song written for the South Park Mr. Hankey's Christmas Classics album. It is sung jointly by Mr. Hankey, the Christmas Poo, and Kenny McCormick, who sings all of the offensive lines, but in his famous muffled voice. One could consider the muffle to be self-censoring on the part of songwriters Trey Parker and Matt Stone, but the intent listener can pick up on some of the lines at certain points. Moreover, the complete lyrics were also posted online. However, a version does exist with only Mr. Hankey singing, with all lyrics sung extremely clearly.
This song is about the supposed sexual antics of the Virgin Mary, Mother of Jesus, and also parodies the debate surrounding the Monica Lewinsky/Bill Clinton sex scandal about whether or not fellatio constitutes sex.