Roast Chestnuts Share definition Flag Titty-fuck. When a man puts his penis between a woman's breasts to achieve orgasm. The girl was on her period so she sucked my dick and let me roast chestnuts. Roast Chestnuts by Lilcheeks November 21, 2012 0 0 Get merch Get the Roast Chestnuts mug. Buy Now — $32.95 See more merch