The Vicious Inch Share definition Flag A sex move where a male with a small penis aggressively and repeatedly penetrates the female. I gave her 'The Vicious Inch'. The what? You know, in and out dead quick. The Vicious Inch by slipperydingus September 27, 2015 0 0 Get merch Get the The Vicious Inch mug. Buy Now — $32.95 See more merch