The 1999 South Park movie (“Bigger, Longer, Uncut”), did a bit of a send up on this point, and several interviews with Stone and Parker get into the topic.
“Just remember what the MPAA says: Horrific, deplorable violence is OK, as long as you don't say any naughty words!”
“Just remember what the MPAA says: Horrific, deplorable violence is OK, as long as you don't say any naughty words!”
https://birthmoviesdeath.com/2016/08/10/the-time-south-park-...