* ArchivePanic: Wiki/TheOtherWiki guesses that they may be the most prolific artists ''ever'' in terms of released material, in no small part due to Dial-A-Song. It's almost impossible to own everything they've ever released. Even people who pick up and enjoy every studio album are sometimes surprised by songs they don't know that were never released in an album.
* BigLippedAlligatorMoment: Of a sort in "Particle Man" from ''Music/{{Flood}}'' with Universe Man, whose description is a total MindScrew and, unlike Particle Man and Person Man, never fights Triangle Man.
* CounterpartComparison: In the AnimatedMusicVideo for "Bastard Wants to Hit Me", the narrator is commonly compared to Edd from ''WesternAnimation/EdEddNEddy'', with the subject of the song being somewhat compared to Ed.
* CoveredUp:
** "Istanbul (Not Constantinople)" from ''Music/{{Flood}}'' was originally a Four Lads song, but most people these days only know the TMBG version.
** "Dog on Fire", the instrumental theme song for ''Series/TheDailyShow'', was originally written and performed by [[Music/HuskerDu Bob Mould]]. However, once Jon Stewart became the host a few years into the show's existence, Mould's version was replaced by one performed by They Might Be Giants. Following Stewart's departure, "Dog on Fire" was replaced with a remixed version arranged by Music/{{Timbaland}} and Music/KingLogan.
** "New York City" is a cover of a song by the all-female twee band Cub, whom the Johns were friends with. The original appears on Cub's 1994 album ''Come Out, Come Out'', which had only been released two years prior to TMBG's cover of the song, which helped the fact that more people remembered the cover rather than the original. Flansburgh mentions in the DVDCommentary for ''Gigantic'' that he wishes more people knew this, but their version is so popular it's usually near the end of the show and he doesn't feel "Thanks for coming, by the way this next song is not by us..." sounds right.
** "Why Does the Sun Shine? (The Sun Is a Mass of Incandescent Gas)" is a cover of a 1959 song by Tom Glazer. The song was woefully obscure when TMBG covered it and actually features a handful of now-inaccurate facts (notably that the sun is actually made of ''plasma'', not gas). TMBG recorded "[[http://www.youtube.com/watch?v=u-KyciKHw-g Why Does The Sun Really Shine?]]" a factually accurate new version of the song for their 2009 childrens' album ''Here Comes Science''.
** "What Is a Shooting Star?", written by Lou Singer and Hy Zaret (who also wrote the aforementioned "Why Does the Sun Shine").
** "Walking My Cat Named Dog" from "Why?" is a cover of the 1966 song by Norma Tanega.
* CriticalDissonance: ''Flood'' got some surprisingly harsh reviews when it was released, even from reviewers who praised their first two albums (''Rolling Stone'', Robert Christgau), either accusing them of getting too slick for their major label debut, or fretting that they didn't seem to be getting more "serious". It's their biggest-selling and most beloved album.
* EnsembleDarkhorse: One or two of the backing band members:
** Danny Weinkauf. Starting around ''No!,'' he began to write songs for the band, on which he would sing lead. These include some of the group's most memorable children's songs, past and present. He's since parlayed this into a solo career, complete with a backing band of his own.
** Dan Miller, who really gets the chance to shine in the group's live shows. On top of playing guitar, he'll occasionally sing lead, and he plays Linnell's keyboard parts in songs where Linnell plays two instruments. That, and he usually gets at least one opportunity to bust out an awesome guitar solo.
* EpicRiff:
** "The Lady and the Tiger", in full effect.
** "Ana Ng". The Johns even rhythmically tap their teeth to it in the video.
** "The Guitar" has a pretty nifty bass riff.
* EpilepticTrees: The band seemingly invites these with their abstract approach to songwriting, as shown in the ''Gigantic'' documentary with a debate club analyzing the lyrics of "Particle Man". The band [[ShrugOfGod neither confirm nor deny]] any interpretations of their work.
* EarWorm: Many of these in their songs. Such as "Istanbul Not Constantinople".
* FaceOfTheBand: John Linnell and John Flansburgh (the original two members) are the ones that all fans of the band think of, although they have other members backing them up, many of them named Dan. Which of the two Johns is more likely to be considered the face depends on your approach to the band. If you go by albums, Linnell sings more of the iconic hits and album headers. But going by concerts, Flansburgh tends to be more of a showman.
* GeniusBonus: In-song references can be both diverse and obscure, including history, literature, and pop culture.
* GermansLoveDavidHasselhoff: While they have a decent following in their homeland of America, they were (at least early on) much more warmly received at shows during tours overseas in the United Kingdom and Japan.
* HilariousInHindsight: Cartoonist Mark Marek designed the cover art of the single for "(She Was A) Hotel Detective" in 1988 and did the animation for the "Istanbul (Not Constantinople)" music video in 1990. Nine years later, the videos for "Doctor Worm" and "Why Does The Sun Shine" aired as part of the final season of ''WesternAnimation/KaBlam'', which Marek worked on (he made the Henry and June wraparound segments). He later did the animation for "Underwater Woman" in 2015.
** The cover photo for ''[[https://upload.wikimedia.org/wikipedia/en/c/c0/TheyMightBeGiants-JohnHenry.jpg John Henry]]'' is a wonderfully dark parody of the cover photo for ''[[https://upload.wikimedia.org/wikipedia/en/9/9a/..._Baby_One_More_Time_(album).png ...Baby One More Time]]'' by Music/BritneySpears, except ''John Henry'' came out 4 years ''earlier''.
* IronWoobie: Mr. Horrible from "Someone Keeps Moving My Chair" gets continuously abused and/or humiliated by the narrator and his Ugliness Men. Horrible's only complaint is the comically disproportionate song title.
* JerkassWoobie: Johnny from "Can't Keep Johnny Down" is a jerkass with a big me-complex, but the root of this behavior is that he feels as if the entire world is against him, and he's made to suffer for it.
* MemeticMutation: ARE They Giants?
* MisattributedSong: "88 Lines About 44 Women" by The Nails is often attributed to them.
** "I Am Retarded" by [[Music/HemorrhoyRogers Hemorrhoy Rogers]] is commonly mistaken to be one of their songs.
** There's actually a [[http://tmbw.net/wiki/Songs_Incorrectly_Attributed_To_TMBG list]] of songs often misattributed to them.
* ParanoiaFuel: "Hide Away Folk Family", "Where Your Eyes Don't Go", "Someone Keeps Moving My Chair", "It's Not My Birthday", "Hall Of Heads", "A Self Called Nowhere", "The Bells Are Ringing", "Rat Patrol", "Older", "Ant", "Bastard Wants To Hit Me", "I'm Impressed", "Can't Keep Johnny Down", "Black Ops," "Aaa", "What Did I Do To You?", "This Microphone"... That's a song off of each (non-children's) studio album (and at least one compilation). Yeah, it's one of the band's favorite tropes, and at least half of those have serious LyricalDissonance. "Someone Keeps Moving My Chair" is downright ''upbeat''.
* PeripheryDemographic:
** They've always been popular with children, even before they wrote or performed with them specifically in mind. Throughout the '90s, their music routinely appeared on children's cartoons, and they even made live appearances on children's television. "Why Does The Sun Shine?", a fan favorite dating back to the 1980s, made its album debut on ''Here Comes Science''.
** Conversely, their children's music is just as popular with adults. Songs from ''No!'' made their way onto greatest hits compilations years later, and "The Bloodmobile," from ''Here Comes Science'' debuted as a bonus track on a non-children's compilation. Songs from their children's albums, even the educational ones, routinely make their way onto live setlists. The promotional campaign for ''Why?'' even lampshaded this, with the slogan "It's for you, too."
** The sessions for ''Glean'' and ''Why?'' ran concurrently, and occasionally, John and/or John weren't sure which songs were meant for what album.
* SampledUp: The saxophone hook in "Number Three" is a loop taken from Lou Monte's "Skinny Lena." The band found it on a record they discovered while cleaning out an abandoned apartment.
* SequelDisplacement: By far, even to this day, the most well-known album the band has put out is its third, ''Flood''. This is the album that has "Istanbul (Not Constantinople)", "Particle Man", and "Birdhouse In Your Soul". Since it's the most common {{gateway|Series}} into fandom of the band, there's even a {{Fan Community Nickname|s}} for those that bought ''Flood'' as their first TMBG album: Floodies.
* TheyChangedItNowItSucks: In their early days, [[FanNickname the Johns]] worked by themselves and used double-tracking and drum machines to complete the tracks, and they'd play to recordings live. When they finally decided they needed a backup band, fans were pissed. They got over it eventually, though, and now it's hard for most of them to imagine what it would have been like if that had never happened. Their first band album, ''John Henry'', has a controversial status among fans.
* TrueArtIsIncomprehensible
* UnintentionalPeriodPiece: Surprisingly "I Can Hear You" off of ''Factory Showroom'', and more than just the fact that it was recorded on a wax cylinder. It references the Viper Car Alarm, the newness of being able to call from an airplane, and the then-brand new super-sizing.
* WhatDoYouMeanItsForKids: "One Everything" is about the convergence of number theory and cosmology. Not peripherally, but as the entire premise. As a whole, the song could easily blow the mind of a grad student whose degree was not in mathematics or philosophy. It's on the album ''Here Come the 123s'', which was released by Disney Records, aimed specifically at children, and has songs that are obviously for the under-ten set (e.g., an explanation of even versus odd numbers). On the other hand, these deceptively-advanced topics are presented in a way that's nothing but kid-friendly, so maybe it subverts the trope--and the kids!
-->What if you drew a giant circle?\\
What if it went around All There Is?\\
Then would there still be such a thing as an outside?\\
And does that question even make any sense?
* WhatDoYouMeanItsNotForKids: Even with some rather esoteric lyrics, it's pretty obvious that many of their songs touch on more mature themes. Yet their songs have appeared in multiple kid-friendly places (such as ''WesternAnimation/TinyToonAdventures'' and the first ''[[Film/MightyMorphinPowerRangers Power Rangers]]'' movie) even before they specifically made children's albums.
* TheWoobie: In "Nonagon" poor Heptagon isn't even mentioned, let alone does much. The comments that lampshade this have been voted down.
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