The noise made when a large penis or dildo is forcibly and rapidly jammed into a mostly unwilling anus. It is a brutally effective onomatopoeia, combining the painful tearing sound of the anus ripping open with a smoother sliding sound that represents the mass of the bulky invader forcing inside in a single, completely inhumane motion.

When you eat dirt for the first time and leave your family to build a shack in the woods