penile cavity Share definition Flag The result of being so goddamn afraid your penis freaks out and sucks into your intestines. Looking at that fucking Eskimo/Whale freaked me out so much my weenus shrunk into itself, forming a penile cavity. penile cavity by Tommy Wommy Womsters October 8, 2003 0 0 Get merch Get the penile cavity mug. Buy Now — $32.95 See more merch