Big Mouth arrived on Netflix in 2017 with a pitch that sounded like it shouldn’t work. An animated comedy about middle schoolers navigating puberty, complete with personified Hormone Monsters who encourage their hosts toward every conceivable bad decision. The art style was intentionally ugly. The content was aggressively explicit. And somehow, across its early seasons, the show turned all of that into one of the sharpest comedies about growing up that television has produced.
Community opinion on Big Mouth has always been split, and that division is part of its identity. People who love it tend to love it fiercely, praising its willingness to treat the embarrassments of adolescence as worthy of honest, unflinching comedy. People who hate it find the explicit content involving teenage characters impossible to get past. Between those poles lies a large audience that followed the show loyally through its early runs and gradually grew less enthusiastic as it stretched into eight seasons. The consensus tracks a familiar pattern: brilliant opening, strong middle, diminishing returns toward the end.
The Hormone Monsters and the Comedy of Puberty
Every great comedy needs a great invention, and Big Mouth’s is the Hormone Monster. Maury and Connie, voiced by Nick Kroll and Maya Rudolph, transform the internal chaos of adolescence into external characters who whisper terrible advice, celebrate bodily functions, and occasionally show genuine tenderness toward the kids they’re tormenting. The concept works because it takes feelings that are universal but hard to articulate and gives them a voice, a body, and a complete lack of shame.
Kroll and Rudolph are phenomenal in these roles. Maury’s sleazy enthusiasm and Connie’s dramatic intensity are consistently funny across seasons, and the chemistry between the monsters and their human charges gives the show’s most outrageous scenes an emotional foundation. When a thirteen-year-old character is mortified by something their body is doing, the Hormone Monster standing next to them celebrating that same thing creates comedy that is simultaneously gross, empathetic, and uncomfortably recognizable.
Few comedies would dare tackle the subjects Big Mouth takes on directly. Puberty, body image, sexual orientation, gender identity, consent, and the raw confusion of wanting things you don’t yet understand are all given full episodes and extended arcs. At its best, Big Mouth treats these topics with a combination of absurdist humor and genuine care that feels educational without ever becoming a lecture. The Planned Parenthood episode became particularly praised for its direct, myth-busting approach to reproductive health.
Specificity is what makes the comedy work. The show is at its sharpest when it stays grounded in recognizable middle school experiences: the friend whose body develops first, the shame spiral after a public embarrassment, the agonizing process of figuring out who you have a crush on and what to do about it. These are small, particular moments blown up to ridiculous scale, and the exaggeration makes them funnier rather than less relatable.
Where the Formula Runs Thin
Eight seasons is a long time for any comedy, and it’s an especially long time for one built around a single life phase. The show’s central premise, kids going through puberty, creates a natural ceiling on how much story you can tell before the concept starts recycling itself. By the later seasons, many fans felt the show had hit that ceiling and kept going anyway.
Creature mythology expanded aggressively. What started with Hormone Monsters grew to include Shame Wizards, Depression Kitties, Anxiety Mosquitoes, Love Bugs, Hate Worms, and a growing roster of personified emotions and psychological states. Some of these additions, particularly the Shame Wizard in season two, landed perfectly and deepened the show’s emotional vocabulary. Others felt like the writers were reaching for novelty rather than finding new things to say. By season six and beyond, the sheer number of creatures competing for screen time made episodes feel cluttered where they once felt focused.
Musical numbers became increasingly prominent and increasingly divisive. Big Mouth always had songs, but early seasons used them sparingly and to sharp comedic effect. Later seasons leaned heavily into extended musical sequences that sometimes felt like padding rather than storytelling. The format shift worked for some viewers but struck others as the show substituting spectacle for the observational humor that defined its best episodes.
By the final season, even loyal fans had cooled. Storylines set up in season seven were abandoned or resolved hastily, and the finale felt anticlimactic compared to the emotional high points of earlier seasons. The show didn’t fall apart, but it stopped surprising anyone, and for a comedy that built its reputation on audacity, the loss of surprise mattered.
Casting decisions also drew criticism over the show’s run. The original casting of Jenny Slate as Missy, a Black character, became a flashpoint that the show eventually addressed by recasting the role with Ayo Edebiri. The handling of bisexual identity in certain episodes was also called out by fans who felt the show’s definitions were outdated for a series positioning itself as progressive and educational.
Honesty as a Creative Weapon
What Big Mouth does better than any other animated comedy is radical honesty about bodies and feelings. The show refuses to make puberty cute or nostalgic. Bodies in Big Mouth are weird, uncooperative, and frequently humiliating, and the show treats that reality as comedy material without ever making the kids themselves the butt of the joke. The humor comes from the situation, not from mocking the people stuck in it. That distinction is what separates Big Mouth from cheap shock comedy, at least in its strongest episodes.
Should You Watch Big Mouth?
If you can handle explicit content in animation and you’re looking for a comedy that treats adolescence as the bizarre, confusing disaster it actually is, Big Mouth’s early seasons are outstanding. The first four seasons represent the show at its tightest and most inventive, with the Hormone Monsters providing some of the best comedic performances in recent animation. The voice cast is stacked and the writing, at its peak, balances raunchiness with emotional intelligence in ways that catch you off guard.
Skip it if animated nudity involving teenage characters is a dealbreaker for you, regardless of context or intent. The show’s style is deliberately provocative, and no amount of thematic justification changes whether you’re comfortable watching it. Also temper expectations for the later seasons, which are watchable but noticeably less sharp than what came before. Big Mouth probably should have been a five-season show, and knowing that going in helps.
The Verdict on Big Mouth
Big Mouth is the rare animated comedy brave enough to tackle puberty with total honesty, and its first few seasons pull that off with surprising intelligence underneath the gross-out humor. The Hormone Monsters are a stroke of comedic genius, turning abstract teenage confusion into something tangible and hilarious. Later seasons lose the thread, piling on new mythological creatures and musical numbers that dilute what made the show special. Eight seasons was probably too many for a premise this specific, but at its peak, Big Mouth captured the horror and absurdity of adolescence better than almost anything else on television.