History YMMV / BigMouth

** Jessi accuses her father and Caitlin of imposing on their soon to be born daughter because they plan to rise her in a conventionally feminine environment. It never occurs to Jessi that she's imposing her own ideas onto a sister that she's not even that psyched about. Not to mention that a child's identity isn't anywhere near as predictable as Jessi assumes it will be.

** "Am I Gay?" has a scene where Jay suggests Nick call Jessi a "lesbo" for dumping him, while also insisting that being gay sucks as a dude because [[InsaneTrollLogic you won't get any girls]]. Season 2 would reveal that Jay is bisexual, while Season 5 would reveal that Jessi also attracted to girls.

* LGBTFanbase: The show has many LGBT fans due to its messages about sexuality and how people should be free to identify themselves however they feel, as well as many gay fans who feel a strong connection to the GayBestFriend Matthew. This was intensified in Season 2 when Matthew's HiddenDepths were explored and how precise of an exploration of how young gay guys feel in school he is during the sleepover, as well as him essentially being elevated to being a part of the main cast and being a lot more than Jessi's GayBestFriend, even getting his own boyfriend. Likewise, [[spoiler:Jay]] earned more fans after he came out as bi in Season 2. The show also tries to represent many different sexual orientations and gender identities beyond the most common ones, like introducing a pansexual character (Ali) in Season 3 and a transgender character (Natalie) in Season 4. While Ali's reception was mixed, Natalie was very well-received by trans fans.

** The final episode of Season 2 tries to make the Shame Wizard out to be a JerkassWoobie by showing his colleagues avoiding him outside of work. The problem is, he's shown to be as much of a bully to them as he is to the kids.
** The show goes out of its way to depict Shannon as a woman who's struggling to give the best life to her daughter while dealing with complicated feelings about her sexuality and failed marriage. However, after she betrays Jessi's trust by selling their house ''without telling her'' so she has no choice but to move, most fans have said that Jessi would be better off with Greg getting full custody of her.

%%** Matthew totally becomes this in the Valentine’s Day special.
%%** Caleb is this and a bag of chips.

%%** Matthew, at least in season 1.

* FanPreferredCouple: Despite season 3 making Aiden/Matthew canon and season 4 pairing Jay with [[spoiler:Lola]], there's a lot of fans who still wish for Jay/Matthew to happen, since the two had a very interesting BelligerentSexualTension dynamic in season 2. [[spoiler:The two of them finally become an official couple in season 5 only for Matthew to jump Jay towards the end of season 6 due to being incompatible.]]

** Despite Jay/Matthew being one of the most fan preferred couples [[Spoiler:Matthew dumps Jay at the end of Season 6 due to Matthew feeling that Jay has changed too much to be more like Matthew and that the two of them are too different to work as a couple, instead of having the pair work through their differences and having Matthew learning to appreciate Jay's idiosyncrasies like he did the previous season.]]

** Lola's abrasive, unfiltered attitude is either hilariously charming or deeply obnoxious, depending on who you ask, especially after she became a much more prominent character in season 3.

* FanPreferredCouple: Despite season 3 making Aiden/Matthew canon and season 4 pairing Jay with [[spoiler:Lola]], there's a lot of fans who still wish for Jay/Matthew to happen, since the two had a very interesting BelligerentSexualTension dynamic in season 2.

** Lola in Season 2. Andrew dumps her after their GRatedSex and we get a glimpse on her awful home life, with a mother that wishes she was someone else and is only present for Devin. Lola's house is mostly empty because her mother is setting up to move and is never there to make her food. If Andrew didn't ask her for dinner, her only meal would be unfreezing ravioli in the sink. The Shame Wizard refers to her as "the world's saddest girl." Gina pities her enough to talk her into standing up to Devin. If that weren't enough, she gets groomed by a teacher in Season 3.

* UncannyValley:
** If there's one thing about the show everyone agrees on, it's that the character designs don't really look appealing, with some looking downright terrifying. Even some people who gave the show a chance say that they hate it ''just'' for the art style. This is not exactly surprising, taking into account the [[ExactlyWhatItSaysOnTheTin name of the show]] in both literal and metaphorical ways. It's possible the awkward art style is purposeful just to make the sexual subject matter even less appealing.
** The effect adderall has on the kids. Their pupils dilate to the point they eclipse the irises.

** After being criticized for their poorly-researched and [[UnfortunateImplications unintentionally transphobic]] definitions of bisexuality and pansexuality in "Rankings," the next season introduced a transgender character, Natalie, who had a transgender writer on staff (Patti Harrison) to ensure she wouldn't be written offensively. She's also [[QueerCharacterQueerActor played by a transgender actress]] (Josie Totah).

* UnfortunateImplications: "Rankings" has caught some backlash due to the way Ali derisively refers to bisexuality as "so binary", claiming that bisexuals can't be attracted to transgender and non-binary people (while pansexuals can), and in the process implying that trans girls and boys are not "fully" girls and boys. Even though the episode is meant to disprove the notion that pansexuality is superior to bisexuality, it's still never clarified that bisexual people ''can'' be attracted to trans and nonbinary people, and the transphobic implications of Ali's metaphors go uncorrected. [[https://www.pride.com/tv/2019/10/07/fans-debate-biphobia-big-mouth-clip-about-pansexuality LGBT fans quickly criticized the episode's definitions]], and even co-creator Andrew Goldberg [[https://www.huffpost.com/entry/big-mouth-co-creator-apologizes-for-pansexual-bisexual-explanation_n_5d9cbccae4b06ddfc50f30cf admitted they "missed the mark" and promised to do better in future seasons.]]
* UnintentionallyUnsympathetic

** Back in season 1, Andrew's mother is adamant of him having sex education. The Planned Parenthood episode would later reveal that she had an unplanned pregnancy from a one night stand and decided to have an abortion. While she didn't regret her choice, the experience was an emotional one.

* BestKnownForTheFanservice: If there's one moment in the show that constitutes as legal fanservice, it'd be shirtless Judd Birch in "No Nut November".

** "Am I Gay?" has a scene where Jay suggests Nick call Jessi a "lesbo" for dumping him, while also insisting that being gay sucks as a dude because [[InsaneTrollLogic you won't get any girls]]. Season 2 would reveal that Jay is bisexual, while Season 5 would reveal that Jessi actually is attracted to girls.

** Due to his bizarre CloudCuckooLander and {{Manchild}} antics, Coach Steve is either the most hilarious source of surreal comedy in the show, or the most annoying part of it

* GrowingTheBeard: While Season 1 received good reviews, it was dogged by baseless accusations of being softcore child pornography, if not just another ''WesternAnimation/FamilyGuy'' clone. Season 2 would not only improve on the sex-positive stories but also branch out into ones about body positivity, especially the show-stopping "We Love Our Bodies," which finally assuaged these critics and making the show one of the most popular adult animated comedies of its time. It's telling that season 1 received [[ComplainingAboutShowsYouDontWatch knee-jerk backlash from its subject]] alone while season 3 received [[https://www.advocate.com/television/2019/10/07/big-mouth-pansexuality-vs-bisexuality-episode-stumbles-over-itself actual good-faith criticism]] about how it ''handled'' the subject.

** Nick's Creator/TexAvery-style WildTake in "The Head Push." It comes out of nowhere for seemingly no other reason than to have the punchline of his eyes not going back to normal after.
* BizarroEpisode "Pillow Talk" involves [[spoiler: Jay's brother]] impregnating his [[SuddenlySpeaking now-sentient]] pillow and the two of them spending the rest of the day going through the stereotypical motions of a real life pregnancy (morning sickness, feeling the baby, the baby [[spoiler:turning out to be Jay's brother's]], etc), the drama of 13-year-old Jay now being the father of a 40-year-old pillow's baby and eventually [[ExpressDelivery the pillow giving birth]]. It ends with the pillow leaving him and taking their half-pillow, half-human hybrid baby with her and Jay deciding having sex with his bathmat instead. ItMakesJustAsMuchSenseInContext.

** In Season 4, Natalie sparked a lot of popularity as being the first [[UsefulNotes/{{Transgender}} trans]] character on the show and showing the very realistic struggles that trans individuals go through, with fans also being very fond of her sassy and fiery spirit, as well as her friendship with Jessi.

* TheyWastedAPerfectlyGoodPlot: Having just three hormone monsters and some inconsistency regarding who can and cannot see them, instead of giving each character their own, unique hormone monster matched to their personality and deciding if ''only'' that character can see them or if every character going through puberty can see them or if everyone can see them. Later seasons try to fix this by introducing more hormone monsters like Mona and Tyler.

* GrowingTheBeard: While Season 1 received good reviews, it was dogged by baseless accusations of being softcore child pornography, if not just another ''WesternAnimation/FamilyGuy'' clone. Season 2 would not only improve on the sex-positive stories but also branch out into ones about body positivity, especially the show-stopping "We Love Our Bodies," which finally assuaged these critics and making the show one of the most popular adult animated comedies of its time. It's telling that season 1 received [[ComplainingAboutShowsYouDontWatch knee-jerk backlash from it's subject]] alone while season 3 received [[https://www.advocate.com/television/2019/10/07/big-mouth-pansexuality-vs-bisexuality-episode-stumbles-over-itself actual good-faith criticism]] about how it ''handled'' the subject.

** Matthew totally becomes this in the Valentine’s Day special.
** Caleb is this and a bag of chips.

** Matthew, at least in season 1. See RescuedFromTheScrappyHeap.

* AlternateCharacterInterpretation:

* FunnyAneurysmMoment:
** Back in season 1, Andrew's mother is adamant of him having sex education. The Planned Parenthood episode would later reveal that she had an unplanned pregnancy from a one night stand and decided to have an abortion. While she didn't regret her choice, the experience was an emotional one.
** In "How to Have an Orgasm," Andrew writes a DearJohnLetter to Cherry hoping one of their family members dies so they can meet again at a funeral. The next season, Andrew's grandfather dies, and Andrew becomes convinced it's his fault for breaking his rituals, and he develops intrusive thoughts about death from the experience.

** Season 1 had the [[CriticalResearchFailure common misconception that Freddie Mercury was gay, instead of bisexual]]. In season 2, [[spoiler:Jay]] becomes canonically bisexual, and the ghost of Mercury even pops up to tell [[spoiler:Jay]] that despite the common misconception, he too was bi.

** After a very negative reaction to the trailers, the show itself has garnered a mixed reception. Some find the show surprisingly funny and uses its lurid subject matter for good jokes and commentary. Others find the show tasteless, unfunny, and pretentious.

* CriticalResearchFailure: In "Am I Gay?" Music/FreddieMercury is among the "famously deceased homosexuals" with Socrates. Freddie was bisexual, not gay, though that is a somewhat common mistake, since during the high years of Queen, the press was eager to out Freddie as gay and many labeled him as such, with Freddie assuming himself as bisexual. Four of Freddie's romances became publicly known, two were with women, saleswoman Mary Austin (to whom he dedicated "Love of My Life") and actress Barbara Valentin. Granted, the whole point of the episode is that sexuality is a spectrum rather than set binary rules, so Freddie could be seen as an embodiment of this. A season 3 episode has Mercury's ghost outright state that he was bisexual and often MistakenForGay.

* SeasonalRot: A lot of fans don't really like Season 5 since most of the characters were {{flanderized}} and hold the JerkassBall.

** In general, ''Big Mouth'' tends to earn this with any Netflix show that gets canned unfairly, due to its perceived AdoredByTheNetwork status and AudienceAlienatingPremise. Fans of ''Series/TheDarkCrystalAgeOfResistance'' tend to be particularly acidic.

* HilariousInHindsight: Andrew's voice actor John Mulaney would later go on to voice [[WesternAnimation/SpiderManIntoTheSpiderVerse another character with uncomfortably moist hands]]. For added laughs, Missy's [[Creator/JennySlate ex-voice actress]] starred in ''Film/Venom2018''.

** The Season 5 finale has Jessi realize how callous she's been to Missy and apologize for taking over her affinity group. However, Missy's own behavior in the season, particularly spreading vicious rumors about Jessi and Ali that culminate in a massive physical fight, make it harder to see Missy as a victim of Jessi's behavior as opposed to them ''both'' being petty and impulsive. The season does depict Missy's hate-filled behavior as unsympathetic, but the final episode implies most of the blame is on Jessi in the situation, despite Missy acting more maliciously as opposed to just InnocentlyInsensitive.

** Jay and Matthew despite kissing and having an interesting dynamic throughout season two are not actually a couple. Matthew gets a new boyfriend early in season three and Jay got with Lola in season 4. However, season four also shows Jay basically flirting with both Matthew and Aiden while at the camp pool before jumping into the pool (making sure to splash the two of them) in an effort to show off. Also when Jay is seeing fantasies with Lola it’s Matthew who brings him down to reality to try and show Jay that he’s with someone (who is in Matthew view is totally wrong for him) while putting his hand on Jay’s shoulder. Jay also admits to a jealous Lola to having sexual dreams about Aiden and Matthew.