rip someone off

rip off

1. verb Literally, to tear or pull something off of someone or something. A noun or pronoun can be used between "rip" and " off." The throng of screaming fans nearly ripped the singer's shirt off. Luckily, I remembered to rip off the price tag before handing Sara her gift.
2. verb To steal (something). A noun or pronoun can be used between "rip" and "off." The kids were caught going to different shops around the city and ripping off snacks. If you're ripping cars off, you're going to get caught!
3. verb To plagiarize or shamelessly copy something or someone. A noun or pronoun can be used between "rip" and "off." I can't believe he ripped my idea off like that! Hey, that was my idea! Don't rip me off like that!
4. verb To steal from or defraud someone; to cheat or swindle someone. A noun or pronoun can be used between "rip" and "off." The guy said it was a great deal for such a rare album, but I'm starting to think he ripped me off. The CEO was convicted for ripping off nearly a quarter of a million customers over the course of a decade.
5. noun An instance of theft or fraud; a cheat or swindle. The phrase is often used to indicate that the product promised or advertised was not what was delivered. In this usage, the phrase is usually hyphenated or spelled as a single word. They sign you up for recurring payments but never actually send the magazines. It's just a big rip-off. This didn't even come with batteries? What a rip-off!
6. noun An instance of blatant or shameless plagiarism. In this usage, the phrase is usually hyphenated. It's a cool-looking movie, but the plot is a total rip-off of "Alien." This didn't even come with batteries? What a rip-off!
See also: off, rip
Farlex Dictionary of Idioms.

rip someone off

tv. to assault, kill, beat, rob, rape, or cheat someone. Man, they ripped me off for three hundred dollars.
See also: off, rip, someone
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • blow off
  • blow someone/something off
  • check off
  • base off (of) (something else)
  • bite off
  • blow off the map
  • cast off
  • cheese someone off
References in periodicals archive
In the blink of an eye, money was transferred from one account to another PROSECUTOR CHEATS REEL IN A NEW MARK EVERY 15 SECONDS FRAUDSTERS rip someone off every 15 seconds in the UK.
IF you're going to rip someone off, boxing champ Nigel Benn is probably not the best choice...
This not-so-dynamic trio runs into trouble with the Dark Souls, a thinly fictionalized version of the Hell's Angels, when they rip someone off on Darks territory.