Garfield debuted in Jim Davis's comic strip in 1978 as a lazy, lasagna-loving orange tabby who hates Mondays, later reaching wider audiences through animated series and films. The you fat cat insult plays on that long-established personality, reducing decades of jokes about his appetite and idleness to a single shouted line. Short clips like this spread easily on soundboards and in meme edits, where the recognizable name and blunt delivery need no setup, which keeps the two-second callout in regular rotation for pet and laziness jokes online.