To cut, tear apart, or tear away roughly or energetically. See Synonyms at tear1. To split or saw (wood) along the grain. To subject to vehement criticism or attack: The critic ripped the tedious movie. Informal To produce, display, or utter suddenly: ripped out a vicious oath. Computer Science To copy (audio or audio-visual material from a CD or DVD). To become torn or split apart. Informal To move quickly or violently. The act of ripping. A torn or split place, especially along a seam. A ripsaw. rip into To attack or criticize vehemently: ripped into her opponent's political record. rip off Slang To steal from: thieves who ripped off the unsuspecting tourist. rip off Slang To steal: ripped off a leather jacket while ostensibly trying on clothes. rip off Slang To exploit, swindle, cheat, or defraud: a false advertising campaign that ripped off consumers. A stretch of water in a river, estuary, or tidal channel made rough by waves meeting an opposing current. A rip current. A dissolute person. An old or worthless horse.