Les Claypool's spoken word and singing during the hidden track on Significant Other.
Ben Stiller, on the Chocolate Starfish and the Hot Dog Flavored Water outro.
Fred Durst singing "Nookie" in autotune on the end of "Loser" / the introduction to "Autotunage" from Gold Cobra.
The music video for "My Way Or The Highway", a Concept Video poking fun at Concept Videos: The costume folks wanted to try a few ideas out to see what worked, and the video constantly cuts between numerous different settings (50's doo-wop singers, badass bikers, cavemen, and KISS-style makeup). All with campy low production values.
The intro to Significant Other: You wanted the worst... you got the worst. The one... the only... Limp Bizkit.