* ActorAllusion: Sort of. Sherman the Giraffe is voiced by rapper Music/MFDoom, with a song on his Dangerdoom album named for and about the show to boot. The episode ''Woke Up Drunk'' opens with him singing on stage with a California bear.
* ConclusionInAnotherMedium: The last few episodes were released on the Internet.
* {{Corpsing}}: It was pretty obvious that the singer couldn't help but chuckle at one point during the main theme, particularly after he says "old Chinese joke." His laughter was even included in the closed captioning.
* CutShort: Season 2 only had 1 episode in the series produced, the crew behind Perfect Hair Forever did not have any interest in continuing the show with the second season, (Also see WhatCouldHaveBeen below).
* DescendedCreator: Creator/DaveHughes, the editor and director, voices Terry / Twisty.
* KeepCirculatingTheTapes: For a time the only way you could get the episodes on DVD was on Adult Swims make your own DVD website, after it got taken down the only way to even get the pilot was on a bonus disc in the Adult-Swim-in-a-box collectors set. While it still has yet to be released on DVD, as of March 2014 the first 6 episodes have been released on iTunes and as of July 2014 they are all on their official website.
* WhatCouldHaveBeen: Season 2 was originally going to have over 16 full Episodes going to be produced & would air on Adult Swim's "The Fix", however, season 2 ended up with only one episode called "Return to Balding Victory" after that the show eventually went on a large hiatus until 2014, where two versions of the eight-episode called "Muscular Distraction", both "A-B", were officially aired.
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