grown man with ketchup Share definition Flag A footlong hotdog. Usually said by oldheads who have a Bluetooth at sporting events or state fairs Cashier: Hi sir what would you like today Oldhead: Lemme get a grown man with ketchup youngblood! grown man with ketchup by Mack Naviaux III March 29, 2020 0 0 Get merch Get the grown man with ketchup mug. Buy Now — $32.95 See more merch