On Valentine's Day Nick Birch and Jessi Glaser are feeling down, Jessi over her mom's love life and Nick over having Connie the Hormone Monstress as his new hormone monster. Andrew Glouberman plans to use the day to win back Missy Foreman-Greenwald and it backfires, which results in him physically attacking Lars, a boy in a wheelchair. Jay Bilzerian plans a date with his male and female pillows, but it ends with them breaking up. Matthew, the only openly gay boy in the school, is starting a friendship with Jessi and meets a gay boy. At dinner, with his mother and father, Nick lashes out at the two for the first time. Meanwhile, at the Valentine's Day party at Lola's house, DeVon, the boyfriend of Devin, proposes marriage to her and she says yes.
Two weeks have passed after the Valentine's Day party at Lola's house. Jay cuts off Andrew's finger in shop class, Jay's father blaming it on the girls' clothes. The girls protest Mr. Lizer's dress code. Nick and Andrew try to find out what the girls want. Jay, in the midst of his break from masturbating, has sex with a turkey.
23
3
"Cellsea"
Bryan Francis
Joe Wengert
October 4, 2019 (2019-10-04)
Matthew tries to contact Aiden again. Meanwhile, Nick gets a sentient hand-me-down cell phone from Leah and starts to develop a smartphone addiction, and Andrew unplugs.
24
4
"Obsessed"
Joel Moser
Kelly Galuska & Jaboukie Young-White
October 4, 2019 (2019-10-04)
Nick's obsession with Cellsea grows. Meanwhile, Matthew goes on his first date with Aiden and Jay collaborates with Missy on her Nathan Fillion/Rock of Gibraltar crossover fanfiction.
25
5
"Florida"
Kim Arndt
Victor Quinaz
October 4, 2019 (2019-10-04)
Nick goes with Andrew's family to Florida to celebrate Pesach. Meanwhile, Jay is left behind by his family while his house is fumigated, and he ends up living with Nick's family, who treat him with kindness. Andrew starts to have feelings for his flirtatious cousin, Cherry Marashino. Andrew's mother starts going through menopause.
26
6
"How To Have An Orgasm"
Bob Suarez
Emily Altman
October 4, 2019 (2019-10-04)
Jessi learns more about masturbation and her electric toothbrush, while her mother, Shannon Glaser and Cantor Dina Reznick break up. Meanwhile, Andrew decides to send a dick pic to his cousin, and Nick grows jealous of Jay living in their home.
27
7
"Duke"
Bryan Francis
Gil Ozeri & Jak Knight
October 4, 2019 (2019-10-04)
The Ghost of Duke Ellington tells the boys the story of how he lost his virginity in 1913.
28
8
"Rankings"
Joel Moser
Kelly Galuska
October 4, 2019 (2019-10-04)
At DeVon’s bachelor party, the boys make lists of the hottest girls in 7th grade, starting list fever at Bridgeton High, which causes the girls make lists of their own. Meanwhile, after a new pansexual girl named Ali joins the class, Jay finally comes out as bisexual. The episode ends with the "wedding" of DeVon and Devin.
29
9
"The ASSes"
Kim Arndt
Joe Wengert & Max Silvestri
October 4, 2019 (2019-10-04)
When Jay is prescribed Adderall, he does a better job focusing in class. After doing very well on his Academic Skills Survey (or ASS) other kids start asking for Jay's Adderall, which he sells to them. Jessi's mother starts planning Jessi's life for her, which brings back the Depression Kitty. During one of the final tests, detectives burst into the class and arrest Jay for drug dealing.
30
10
"Disclosure the Movie: The Musical!"
Bob Suarez
Emily Altman & Victor Quinaz
October 4, 2019 (2019-10-04)
During rehearsals for the spring musical, a musical version of the film Disclosure, Nick playing Michael Douglas and Missy playing Demi Moore, develop sexual tension, which leads Missy to meet her new hormone monstress named Mona, ending in a kiss that Andrew sees. Meanwhile, Mr. Lizer takes advantage of an oblivious Lola and is fired. The Fab Five from Queer Eye make over Coach Steve; afterwards, he gets his old job back.
31
11
"Super Mouth"
Bryan Francis & Mike L. Mayfield
Gil Ozeri
October 4, 2019 (2019-10-04)
During a freak storm, every student at Bridgeton gains superpowers. Andrew, who is able to become invisible, and Nick, who can change size, start to fight. Missy can control weather with her feelings. Jessi can make people tell the truth with a touch and finds out how she and her mother are moving to the city. The superpowers are later revealed to actually be the imagination of Caleb, drawing their superhero personas while watching them argue and fight. The season ends on a note of uncertainty, as Andrew ends his friendship with Nick, Nick breaks up with Missy, Jessi and Shannon begin the process of selling their house, and Marty sports an eyepatch for some unknown reason.
Reception
Critical response
Rotten Tomatoes, the third season has an approval rating of 97% based on 33 reviews with an average rating of 8.00 out 10. The website's critics consensus reads, "Like the characters at its center, Big Mouth's third season continues to grow, taking on complicated new issues with the same gross-but-utterly-empathetic eye that made it so lovable in the first place." On Metacritic, it has a score of 84 out of 100 for the third season, based on five critics, indicating "universal acclaim".[2] On Metacritic, it holds a rating of 80 out of 100, based on six critics, indicating "generally favorable reviews".[3]
