Big Chungus comes from a still of Bugs Bunny puffed up to mock Elmer Fudd in the 1941 Merrie Melodies cartoon Wabbit Twouble. The image sat largely forgotten until it resurfaced online in 2018, when users captioned the bloated Bugs as Big Chungus and spread it across forums and social feeds. The name then spawned songs, remixes and repeated chants like this one, with each version stretching the joke further. It remains popular because the chant needs no context and instantly signals a goofy, larger than life moment.