The fourth season of Big Mouth, an American adult animated coming-of-age sitcom created by Andrew Goldberg, Nick Kroll, Mark Levin, and Jennifer Flackett, was released on Netflix on December 4, 2020.

Big Mouth explores puberty while "embrac[ing] a frankness about the human body and sex.

"[1] After being upset from their exclusion from the previous episode, Maury and Connie watch four different stories about giving hand jobs.

The website's critics consensus reads, "Big Mouth's fourth season is another tour de force of empathetic cringe comedy that manages to get even better by finally giving Missy the storyline she deserves.

"[2] On Metacritic, it has a score of 84 out of 100 for the third season, based on five critics, indicating "universal acclaim".