rumblestifkin Share definition Flag The act of a reciever of anal sex (male or female) flatuating around the inserted penis. Hence the "rumble" sensation. "I was just about to blow in her ass and she gave me a rumblestifkin!" rumblestifkin by J-Rod D March 28, 2009 0 0 Get merch Get the rumblestifkin mug. Buy Now — $32.95 See more merch