The line comes from the LOLcats tradition, where pictures of cats were captioned in deliberately broken, playful English, with asking for a cheeseburger becoming one of the most recognizable jokes. The format spread through early meme blogs, forums and image macros in the late 2000s, long before short-form video made the same jokes audible. On soundboards and in pet edits, the phrase survives because it is instantly readable, endlessly reusable and tied to a familiar image of a hungry, hopeful cat.