The line belongs to Mater, the good-natured tow truck from Pixar's Cars, released in 2006 and voiced by comedian Larry the Cable Guy. Git-R-Done was already his stand-up catchphrase long before the film, and the movie built the character's whole personality around it. After Cars became a hit, the shouted line lived on through memes, reaction videos and soundboards, where its one-second length makes it perfect for short clips. It survives because it is both nostalgic for kids who grew up with the film and instantly funny out of context.