Top Definition
Potassium nitrate (KNO3), a substance used in explosives (usually gunpowder) and fertilizers.

Contrary to popular urban legend, saltpeter has no effect on libido, and too many side effects (high fever, etc.) to be used even if it did.
The army doesn't want to kill our soldiers with saltpeter. They want our enemies to do it.
dari red_beard_neo Rabu, 14 April 2004

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a magical formula that they put in your food in prison and possibly in the military also to curb your ability to pop a boner.
you can't even pop a chubby in basic training caue of the saltpeter
dari cobud Minggu, 14 Maret 2004

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a substance added to prison meals to prevent the African Americans from raping each other
"With a daily dose of salt peter the inmates lose homosexual interest in each other."
dari WingSlinga Rabu, 12 Agustus 2009

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another name for cum, or man juice
The girl that sucked me off las night was so bad i just had to
spray my salt peter up her nostral
dari Jamie Rabu, 14 Juni 2006

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