History YMMV / TenaciousDInThePickOfDestiny

** "You're gonna gargle mayonnaise!"[[labelnote:Explanation]]This line from "Beelzeboss (The Final Showdown)" became a popular editing source for {{YouTube Poop}}s, mainly because of the [[LargeHam hammy]] way Jack Black says "gargle".[[/labelnote]]

* {{Fanon}}: It's usually accepted that the reason JB managed to deflect Satan's lightning bolt in the end with his guitar was because Tenacious D had actually managed to win the rock-off. [[note]]After all, the Devil songs about how he loves ‘’metal,’’ and it’s [[LoopholeAbuse explicitly stated to be a rock-off, not a metal-off]].[[/note]]
* MemeticMutation: "Well, I just want to say that I'm a huge fan" [[labelnote:Explanation]]A scene from the making of where Dave Grohl, in costume as Satan, says this to Jack Black, which is used to invoke YourApprovalFillsMeWithShame on someone.[[/labelnote]]
* OneSceneWonder

* BigLippedAlligatorMoment: the sasquatch scene.

* HilariousInHindsight: JB grew up in a Christian fundamentalist household and his parents thought rock was the Devil's work. In real life, Jack Black is Jewish.

** The opening number, "Kickapoo," a mini-RockOpera featuring (in order) Jack Black [[LargeHam doing his thing]], Music/MeatLoaf singing in a movie for the first time in [[Film/TheRockyHorrorPictureShow thirty years]] and Music/RonnieJamesDio rocking so hard that his voice literally caused a microphone to blow out![[note]]He does not need! A microphone! His voice is fuckin'! POWERUUUUULLLL!![/note]]

* {{Fanon}}: It's usually accepted that the reason JB managed to deflect Satan's lightning bolt in the end with his guitar was because Tenacious D had actually managed to win the rock-off. [[note]] After all, the Devil songs about how he loves ‘’metal,’’ and it’s [[LoopholeAbuse explicitly stated to be a rock-off, not a metal-off]] [[/note]]

** For a non-Tenacious D example, "Agnus Dei" [[https://www.youtube.com/watch?v=KkObnNQCMtM the song playing when Jables gets his first guitar]]
** The first song in the film features guest vocals from both Music/MeatLoaf ''and'' Music/RonnieJamesDio, performing (respectively) a honky-tonk gospel number and a inspirational power metal ballad.

** Of course we also can't forget the sheer unadulterated awesomeness that is ''[[DreamSequence Master Exploder]].''

* OneSceneWonder: Music/MeatLoaf as Jack Black's father and the song he sings in.
** Music/RonnieJamesDio as himself, and Music/DaveGrohl as the Devil.

* LawfulEvil: Satan concedes to the commands of the Demon's Code that he has to agree to the rock-off challenge whether he wants to or not. He doesn't even cheat when he rocks-off either. He's that good.

* AlternativeCharacterInterpretation: Is Jack Black an Iconic, if hammy, baddass who does what he does for the rock? Or is he [[WellDoneSonGuy just fighting for his daddy's love]] the only way he can, through music, as suggested by "Baby" and "Sasquache"?

* SignatureScene: The Rock-off against The Devil that is the climax of the film is by far the most remembered moment of the film, in no small part due the "[[SugarWiki/AwesomeMusic Belzeboss]]" musical number.

* {{Fanon}}: It's usually accepted that the reason JB managed to deflect Satan's lightning bolt in the end with his guitar was because Tenacious D had actually managed to win the rock-off.

* SignatureScene: The Rock-off against The Devil that is the climax of the film is by far the most remembered moment of the film, in no small part due the "[[CrowningMusicOfAwesome Belzeboss]]" musical number.

* FridgeBrilliance: [[spoiler: JB agrees to put KG up as a bet for their rock-off with the devil...despite the Devil having said that he literally CANNOT decline a rock-off challenge. However in order to send Beelzeboss back to hell from whence he came. Jables HAD to strike a deal with him of some sort. There would've been nothing to gain from the challenge on either side, had Jables not offered Kyle's soul to Beelzeboss in the first place. Beelzeboss feed on the souls of the tormented. It literally was "the only way". If the D had won WITHOUT doing this, Beelzeboss would be loose on Earth and would have taken control of the world.]]
** [[spoiler: Seeing as Beelzeboss threatened that they would suck his cock for awakening him on to the mortal plane, JB actually AVOIDED sucking cocks in hell, by specifically offering Kage's soul in case they lost the challenge, where they'd be both literally fucked.]] [[spoiler: And seeing as they won they don't NEED to go to the big rock-off anymore because they just saved the world with their rock, and Beelzeboss pays their rent now.]]
*** [[spoiler: Unfortunately for them, they didn't actually win the rock-off, they just reflected Satan's attack with JB's guitar (a symbol of friendship between JB and KG. Yeah, symbolic stuff tends to do well against the supernatural). In a deleted scene, they mooch off of Lee after the events of the movie. Or maybe the guitar only reflected the attack because they had won; it's not really clear.]]
*** [[spoiler: Symbolic indeed. The guitar's neck is covered in symbols and iconography from practically every major system of faith.]]
*** [[spoiler: Sure they won. It's no coincidence that [[SourceMusic drums, amp effects, and backup vocals come out of nowhere]] in the middle of the song, even though all they have are their unamplified guitars and their own voices. They literally have [[ThePowerOfRock the power of rock]] on their side, and maybe even a little help from [[{{God}} The Big Man]] himself.]]
*** [[spoiler: The song at the end of Beelzeboss is the song Tribute is a tribute to, think about it.]]
** OK, OK. [[spoiler: Jables is clearly the greatest [[TheChessmaster Chessmaster]] the world has ever known. He gave the Devil his terms: either he could have taken his sorry ass back to Hell and pay their rent or he could take Kage back to Hell to be his little bitch. In accepting this arrangement, the Devil agreed to shell out about $300 or [[{{Squick}} take home a brand spanking new, rotund personal sex slave]] and ''go back to Hell either way''.]]
** [[spoiler: It makes perfect sense that Beelzeboss will live in "The city of fallen angels", as Dio put it]]

* SoBadItsGood: One of the very few examples that manages to pull this off intentionally.

* TearJerker: The song [[https://www.youtube.com/watch?v=WTh-U3rK91o "Dude (I Totally Miss You)"]] is pretty damn depressing for a comedy rock film.

* TearJerker: The song [https://www.youtube.com/watch?v=WTh-U3rK91o "Dude (I Totally Miss You)"] is pretty damn depressing for a comedy rock film.

* SoBadItsGood: One of the very few examples that manages to pull this off intentionally.

** The first song in the film features guest vocals from both Meat Loaf ''and'' RonnieJamesDio, performing (respectively) a honky-tonk gospel number and a inspirational power metal ballad.

** Creator/RonnieJamesDio as himself, and Creator/DaveGrohl as the Devil.

** OK, OK. [[spoiler: Jables is clearly the greatest [[TheChessmaster Chessmaster]] the world has ever known. He gave the Devil his terms: either he could have taken his sorry ass back to Hell and pay their rent or he could take Kage back to Hell to be his little bitch. In accepting this arrangement, the Devil agreed to shell out about $300 or [[{{Squick}} take home a brand spankin [[{{Squick}} new, rotund personal sex slave]] and ''go back to Hell either way''.]]