Question: Which character in the adult animated film, created by Trey Parker and Matt Stone, is known for his muffled and indiscernible speech?
Sentence (from "Kenny McCormick"): He debuted on television when "South Park" first aired on August 13, 1997, after having first appeared in "The Spirit of Christmas" shorts created by Stone and long-time collaborator Trey Parker in 1992 ("Jesus vs. Frosty") and 1995 ("Jesus vs. Santa").
Relevant evidence: No