spindly Share definition Flag Thin, weak and insubstantial in construction. Mincy and faggoty. Puny and frail. "Look at Beavis with his stupid flailing limbs and spindly frame, what a total mincer" spindly by Snorkmeister November 1, 2011 0 0 Get merch Get the spindly mug. Buy Now — $32.95 See more merch