jump in

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jump in

  • /d͡ʒʌmp ˈɪn/ UK, US

Where it comes from

For the US slang sense, compare jump (“attack suddenly and violently”).

verb jumps in · jumping in · jumped in

  1. To enter something quickly, usually a mode of transport. I jumped in the car, and we sped off to the meeting.
  2. To join in on an activity quickly.
  3. To interrupt someone while they are speaking.
  4. US, slang To initiate into an organization, usually a gang, with violence. [Toothpick:] Been hanging with the homies in the hood for a while now / [Al Dog:] 'Bout time we jump your punk ass in / [Toothpick:] That's right. Let me tell you something in this world if you can't swim / [Al Dog:] You bound to drizzown / [Toothpick:] Yeah, and if you fall you better pick your pun

    Similar: haze · Opposite: jump out

  5. To play a card that matches the top card in the discard pile out of turn. With +2, you build on them /add them together in a similar way, but you can only jump in if you have the same color +2, OR if the player whose turn it is has a +2 of any color, he can play it, since it is his turn and he is not jumping in on anyone. […] The wilds can be jumped in on by any wild.
  6. Used other than figuratively or idiomatically: see jump, in. Cathy led the pig down to the pen. “Don’t jump in the mud,” she said. But a pig is a pig. It jumped in the mud.
  7. dated, slang To ambush (someone).

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verb sense 2

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MLA

"jump in." Wiktionary, via Micwyn, micwyn.com/word/jump%20in. Accessed 6 Nov. 2026.

APA

jump in. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/jump%20in

Chicago

"jump in." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/jump%20in.

BibTeX
@misc{jump_in_2026,
  title = {jump in},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/jump%20in},
  urldate = {2026-11-06}
}