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1.
Expression used for acknowledging a truthful remark.
Person 1: When Spears (from Band of Brothers) went right through a German garrison to 'I' company and back, that was pretty much the definition of ownage.

Person 2: Trouche.
von Pecan 28. Oktober 2007
 
2.
Acknowledging the truth behind an effective point of an argument.

Combination of truth and touché.
Person 1 *slurping yogurt*
Person 2 (smartass): "There's a reason spoons were invented."
Person 1: "There's also a reason Humans developed tongues through evolution."
*pause*
Person 3: Trouché.
von WhosNext 30. März 2010
 
3.
A clever combination of the words true and touchet into one word.

Something that is true, but topping or providing a clear superior alternative to a previous satement
mediocre friend 1: "the best game in the world is super smash bros".

awesome friend 2: "Actually, it is super smash bros 64". -

mediocre friend 1:"Trouchét, sir"
von donkey kong 46 11. Februar 2010
 
4.
A variation of a douche in which only harsh, direct, truthful facts are stated that are blasted out of proportion for no apparent reason with the goal of ruining someone's day, and personal outlook. This is someone who thinks they are being a douche, but is just a full blown, direct, cynical piece of shit dick head.
Holy Hell, that kid is trying to be such a douche, but he is just being a no good, opportunist, cynical trouche with no apparent motive other than being a posing son of a bitch.
von Hossman Jenkins 23. September 2011
 
5.
a combination of "true dat" and "touche"
used only by HOTT-ASS mother fuckers
Erin: Damn that guy is a sex beast. I wanna tap that shit yo. i bet its 9 inches!

Kristin and Amy: TROUCHE!!!
von EriKrAmy 26. April 2009