baby hippos Share definition Flag an exclamation used in times of frustration in place of a more offensive expletive "Fudge! Babies! Baby hippos!" - Adam Savage, in an episode of MythBusters, frustrated about a broken machine-crossbow. baby hippos by space_language November 5, 2010 0 0 Get merch Get the baby hippos mug. Buy Now — $32.95 See more merch