1.To divide or separate the parts of, by cutting or tearing; to tear or cut open or off; to tear off or out by violence; as, to rip a garment by cutting the stitches; to rip off the skin of a beast; to rip up a floor; commonly used with up, open, off.
2.To get by, or as by, cutting or tearing. "He 'll rip the fatal secret from her heart."
3.To tear up for search or disclosure, or for alteration; to search to the bottom; to discover; to disclose; usually with up. "They ripped up all that had been done from the beginning of the rebellion." "For brethern to debate and rip up their falling out in the ear of a common enemy... is neither wise nor comely."
4.To saw (wood) lengthwise of the grain or fiber.