Rotch Knob Share definition Flag When your dick stinks so bad after banging a chick with a absolute rotten crotch. I wouldn't call that escort service braaaaaaahhhh. The last three hook ups I've had left me with rotch knob. It took days to wash it away. Rotch Knob by Eaton Holgoode March 8, 2017 0 0 Get merch Get the Rotch Knob mug. Buy Now — $32.95 See more merch