Chug Day Share definition Flag September 29th is chug day, you drink chug every liquid that comes your way Jeremy: I just chugged a 2 litre of iced teaRichard: oh right it’s Chug Day Chug Day by Mister Bister Pister September 29, 2023 0 0 Get merch Get the Chug Day mug. Buy Now — $32.95 See more merch