Not being totally pumped... but almost pumped. Approximately 5/6th of being pumped.
I'm pretty umped for that party on Friday night.
by thewonton December 7, 2011
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Indicates a whole lot but without referencing a specific number
Finally she snagged herself a baller after ump-dee-ump years of dating broke, triffling losers.
by WriterGurl September 25, 2013
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It is the player in Modern Warfare 2 multiplayer, who runs with the infamous UMP45 sub machine gun around the map and spraying those 45. ACPs like no tomorrow.

Defined as a 'n00b' for the reason that this gun is actually WAY overpowered and practically has no recoil.

Typical 'ump n00b' setup:

UMP45 silenced
Any pistol with a tac knife (in case he runs out of ammo)

Marathon
Lightweight (or Cold-Blooded)
Commando (or Ninja pro)
1) xx1337sn1p3rxx: "OMG put down that n00b ump!"
2) kill3rleet: "geez, does this guy even know that there are other guns in this game?....."
3) xM3gaMast3rx: "UMP noob. Nuff' said. *rage quit*
by Reilly_sc April 27, 2011
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A player of Call Of Duty: Modern Warfare 2 that exclusively uses the UMP45 sub machine gun. This player will probably also have fall camo and a silencer.
MattiePOSDaddy just killed the whole enemy team with the UMP45? What an ump chump!
by mattiethedrummer616 September 19, 2010
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1. when a player in CounterStrike is killed by the suckiest submachinegun, his killer says: UMP j00!
2. At the start of a game of CS a player who buys the UMP submachinegun calls out: UMP J00! to put fear in the hearts of his opponents!
Me: UMP j00 N00BS!
N00b1: OMG I R UMPED!
N00b2: OMG ME TO
by Anonymous September 1, 2003
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many, alot, more than one can use
He has umpty ump of those.
by slipsheet October 31, 2004
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Ump jacked is when an umpire, primarily the home plate umpire is missing calls for the pitcher or makes a very bad 3rd strike call on a batter on an obvious ball. Also when pitcher is getting obvious strikes called balls by umpire.
Detroit Tigers pitcher Armando Galarraga, got "Ump Jacked" when Jim Joyce's blown call at first base on potential last out of the game, cost him a perfect game.

David Wright got Ump Jacked on that 3-2 pitch.

Eric Gregg Ump Jacked Atlanta Braves in 1997 National League Championship Series game 6. He called every pitch a strike for Marlins. Lead Braves to have to hack at any pitches by mid game, even obvious balls. Eventually led to him getting dismissed by major league baseball when they purged several bad umps from their ranks in the early 2000s.
by JAX8 June 22, 2010
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