Niggrim Share definition Flag a small child (usually under 5) who runs around uncontrollably because their parents are too fuckin lazy to discipline them child: "alalalalalal" passerby: control that lil niggrim ! Niggrim by lovebug515 November 5, 2009 0 0 Get merch Get the Niggrim mug. Buy Now — $32.95 See more merch