lay on her belly Share definition Flag When a chick lays on her belly, and her butt cheeks are splayed out, ready to be smashed. Yo dog, I told that girl to lay on her belly, and i smashed it all night! lay on her belly by butt cheek man December 6, 2010 0 0 Get merch Get the lay on her belly mug. Buy Now — $32.95 See more merch