Write that down is a memorable quote from a SpongeBob SquarePants episode, where the titular character and his best friend, Patrick are watching Squidward freak out and taking notes of his actions.
Online, the scene is used as a reaction image macro, as well as GIF.
Other quotes and memes from the animated series include No This Is Patrick, Calm Down Son, It’s Just a Drawing and Don’t Let the Flame Die Out, as well as Sponge Man Ice Cone, Mocking SpongeBob and Caveman SpongeBob.
The scene originates from the Season 3 Episode 57b of SpongeBob SquarePants, which first aired in the United States on April 3rd, 2004.
An isolated clip of the scene was uploaded to YouTube on June 3rd, 2015, by user KZCrow.
Image macros and GIFs of the moment started emerging online, following this upload.
“Write that down” became a popular reaction image macro and GIF on sites like me.me, Reddit, DeviantArt as well as 9GAG.
Its popularity started surging in 2019, as more and more posts and comments contained either the quote, or the scene as well.