A set of vocal chords; usually used to describe one's singing abilities.
"Mariah Carey's voice is awesome! She has an amazing set of pipes."

"Have you heard the new girl in our choir? She has great pipes."
by DKMG February 19, 2010
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Def: act crazy
Origin: smoking crack makes you do crazy things.
Last night, Twanna was acting like she was on the pipe when she saw Jamel at the club getting his freak on with Twila. She was buggin.
by Bif December 10, 2004
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A relatively inexpensive and easily concealed marijuana-smoking device. Typically, Choof is placed in a cone on the end of a metallic cylinder, then lit and inhaled.

Pipes tend not to be the preferred method of ingestion for most cannabis smokers - joints and bongs are easier to smoke, and most pipes (using only air-cooling) cause the user to cough when burning material is inhaled. One exception is the Bud Bomb - a well-concealed air-cooled pipe with several filters.

Often called a 'peace pipe' due to the sense of tranquility induced by its use.
The boys were smoking a pipe in the park.
by Googles November 1, 2004
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Arm muscles that are usually large and well defined
Check out these pipes (Flex arms now)
by Rob T January 14, 2004
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Following a relatively safe corridor through enemy anti-aircraft fire. Often used in conjuction with 5 by 5, meaning that the craft in question is either undamaged or has suffered very little damage.
by Macavity October 31, 2003
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woah, that pipe just busted my brains up!
by g0d September 24, 2003
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Fake ecstasy tablets
Test yo shit b4 u eat it...might be pipes!
by noozoo February 3, 2009
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