The Terrence & Philip: Not w/o My Anus April Fools Day joke.

*The Bigger, Longer and Uncut movie

*Kenny's "real" death

*The "Scott Tenorman Must Die" episode

*Chef's death/Issac Hayes' departure

*Other

I own the old Jump the Shark book by Jon Hein from about 2004. In it, he claims that South Park "jumped the shark" some time after the movie came out. This is because apparently, Matt & Trey started to becoming less attentive to the series.

I don't think it has "Jumped the Shark", but the episode called "Pee" is the closest.

"Pee" was the final episode in Season 13 and in that episode, Cartman, Kenny, Stan, Kyle, Butters, and Jimmy go to Pi Pi's Waterpark. Cartman is upset because there's more Minorities than his own kind (Unfortunately, Cartman came to the Waterpark with Kyle...who too is a Minority). Kyle gets upset that Butters peed in the water so Kyle walks out of there. The owner of Pi Pi's is Pi Pi who talks like Mario and is told to close his Waterpark because the park is 98% Urine. (Most Waterparks in real life are 2% Urine, Sweat, Lotion, and even Blood). Pipi refuses to close and the Waterpark becomes a Urinepark so it gets quarantined (Known fact...Urine is basically ammonia and can be used for bleach alternative).

But that episode wasn't funny...it showed how much Cartman is a Racist ******* and Kyle having OCD.