Crab-jab Share definition Flag When you put your thumb and index finger in a pinching position like a crab, and pinch your girls puffy upper vagina multiple times in a row. In a jabbing motion. Babe, I love crab-jabbing your pussy. It feels so good. Crab-jab by Thundacat October 30, 2013 0 0 Get merch Get the Crab-jab mug. Buy Now — $32.95 See more merch