The line comes from SpongeBob SquarePants, spoken by Patrick Star, the dim but lovable starfish who often misunderstands Squidward and SpongeBob. In the scene Patrick invents the direction weast while trying to follow east, turning a basic compass point into nonsense. The clip has circulated for years as a meme sound because weast became shorthand online for clueless confidence. It is still used in edits, streams and shorts whenever someone goes the wrong way or mishears an instruction completely.