Top Definition
To "legislate". To crack down on a certain violation or injustice.
Time to drop the hammer, and dispense some indiscriminate justice!
Kevin Gainesによって 2004年04月03日(土)

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The point near the end of a race where you surge with everything you have to pull away for the win.
I thought Ritz would keep it close, but Webb decided to drop the hammer with 500 to go!
Markkimarkkonnenによって 2005年11月27日(日)

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Holding nothing back. Usually refers to ending something.

The term comes from the hammer action on a gun. The hammer dropping on many pistols is what causes them to fire. If you "drop the hammer" on somebody, you go all out.
Matt Hughes was doing good until GSP decided to drop the hammer on him.
SexHammerによって 2011年06月21日(火)

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To perform an action without restraint...usually as a last resort.
That's it! I've tried to play nice with you, now you've given me no choice! It's time to drop the hammer!
Kurogane7によって 2010年11月22日(月)

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An idiomatic expression meaning roughly "to explode in a fit of rage and fury", it is derived from the action of a firearm hammer "dropping" -- or striking -- the firing pin which in turn impacts the round and causes the mini explosion that results in a bullet or other projectile being launched at a high velocity out of the end of a barrel.

The expression can be used in several different variations with the above definition: 1) ...part. in a draconian way 2) ...leaving a wake of destruction in its path 3) ...against a very specific target with precision; etc.
"I have a clear shot of the target. Requesting permission to engage."
"You have the green light. Drop the hammer on that motherfucker."
BANG. Bad guy fall down.
SaltoftheEarthによって 2014年03月08日(土)

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Poker terminology.
When someone raises early (usually pre-flop if playing Holdem) just to push other players around, and you just can't take that smug grin on his face, you re-raise a ridiculous amount and "drop the hammer." This most often occurs during a Testosterone Fight, and the object is to make the other player put his testosterone hose away and fold. Since it is pre-flop, this has nothing to do with the cards you have, just plain good ol' fashioned balls.
Sam: I call.
Ryan: I call.
Mike: I call.
Kevin: I call.
Marco: I call.
Matt: I call.
Dana: I call.
Devin: I call.
Dave: Well... I'll just double the blinds so I have even stacks... mwaahaahahaa...
Devin: Fuck that! I'm DROPPING THE HAMMER! All in, bitch!
Sam: Coooold bloooooded.....
Devin "Freytag" McNastyによって 2005年03月11日(金)

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to hit the throttle hard
north jersey guido: they really dropped the hammer last night at that show.
jersey slut: fuckin-a right, and it rocked!
octoによって 2004年01月26日(月)

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