"SpongeBob's Big Birthday Blowout" is an episode of the American animated television series SpongeBob SquarePants from season twelve. In this episode, SpongeBob and Patrick tour the surface world, while the rest of Bikini Bottom prepares a surprise party for SpongeBob.
Big Birthday Blowout received extremely favourable reviews by critics and fans, on the Internet Movie Database (IMDb) the episode has a 9.1/10, making it the highest score since "Club SpongeBob/My Pretty Seahorse" in 2002. Common Sense Media gave it a 3/5.
- This was the very last episode Stephen Hillenburg worked on before his death. A thank you message appears at the end of the episode.
- This episode was made to celebrate the twentieth anniversary, like how "Truth or Square" was made to celebrate the tenth.
- This is also the third TV movie overall, and the first one since "Truth or Square" in 2009.
- Unlike the previous TV movies, there's no games or DVD based off it.
- In some countries, this episode is split into two-parts.