poobabies Share definition Flag The offspring that result from a couple having anal sex to avoid pregnancy. We were doin' it in the butt so she wouldn't get pregnant, but I still ended up paying child support for her poobabies. poobabies by Nikolai Nikolayovich July 2, 2006 0 0 Get merch Get the poobabies mug. Buy Now — $32.95 See more merch