Rugrattin' Share definition Flag The act of walking while heavily intoxicated. The lack of balance resembles a baby (Rugrat, if you will) learning how to walk. Josh just stumbled and fell after his fifteenth beer, He's straight RUGRATTIN'!! Rugrattin' by TheHand$91 August 13, 2011 0 0 Get merch Get the Rugrattin' mug. Buy Now — $32.95 See more merch