Squad Baby Share definition Flag The youngest person in a friend group, usually by 2 or 3 years. Guy1: How old are you? Guy2: 17, you? Guy1:14 Guy2: You're the squad baby Squad Baby by Bryce.Irwin01 July 29, 2019 0 0 Get merch Get the Squad Baby mug. Buy Now — $32.95 See more merch