chub it Share definition Flag An LA street gang. Formed by a mysterious and sexy man named Jason "CI"... Based on doing fat girls and bragging about it. Look at Teddy with that fat girl. He is totally in chub it. chub it by definitelyNOTaFATchick July 23, 2005 0 0 Get merch Get the chub it mug. Buy Now — $32.95 See more merch