grannie Share definition Flag n. an old human female that tends to get ran-over by steam-rollers or eaten by wolves like small children do. sumbuddy: i plays lil red reyden hud toodae. guy: A cannible ate your grannie. grannie by Ken R. November 23, 2004 0 0 Get merch Get the grannie mug. Buy Now — $32.95 See more merch