Listen to the sound clip Hail Snowball. from South Park - Season 11: Hail Snowball. Hail Snowball. This sound is from South Park - Season 11 South Park - Season 11, a television show created by Trey Parker and Matt Stone, aired in the year 2007. Known for its bold and controversial humor, this Emmy Award-winning animated series once again pushed boundaries… Go to the full soundboardwith more sound clips Search