Jump in

//d͡ʒʌmp ˈɪn// verb, slang

Definitions

Verb
  1. 1
    To enter something quickly, usually a mode of transport.

    "I jumped in the car, and we sped off to the meeting."

  2. 2
    To join in on an activity quickly.
  3. 3
    To interrupt someone while they are speaking.
  4. 4
    To initiate into an organization, usually a gang, with violence. US, slang

    "[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 punk ass up / [Al Dog:] That's right / [Toothpick, turning to the rest of the gang:] And the rest of y'all don't cut him no slack. Y'all fools get busy [they precede to a game of jump rope with the young man Toothpick and Al Dog were talking to jumping]"

  5. 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."

Show 2 more definitions
  1. 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."

  2. 7
    To ambush (someone). dated, slang

Etymology

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

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