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An explosive mixture of charchoal, saltpepper and sulfur in a ratio of 75:15:10. This is used for fireworks, rocketry, and bullet propellant. Gunpowder was invented by Chinese alchemists in the 9th century AD.
Gun powder is used in fire arms.
by werwertwgg432 January 16, 2005
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2
Slang for powder heroin (vs. chunk or tar)
Matias: The bros and I are gonna get some gunpowder this weekend.

Cassandra: Oh, you're getting a gun?

Matias: Hell no! I don't believe in violence. I just can't afford oxys anymore.
by Cassandra Q October 19, 2011
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3
A strong strained of herion that comes in a almost powder state.
This is gun powder, be careful.
by Mistic January 20, 2008
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4
stuff that makes things go boom. invented by the Chinese.
MacGuyver will us the gun powder in this bullet to propel a lead projectile into that guard's head.
by anubis839 December 26, 2008
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The vengeful act of crapping on a lover's chest while they sleep.

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5
Protein powder / Steroids used by gym-douches to add "size" to their biceps
"Hey Dude, you look ripped. You been on the gun powder again?!"
by Jock_Strapz November 12, 2009
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