To menstruate. (Derivation: One hits the tiny '57' on the side of a stubborn bottle of Heinz ketchup to encourage it to pour.)
I mysteriously crave french fries when I'm hitting the 57.
by Jonathan Harford December 14, 2003
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An AR-15 or a Mil/LE M4 modified to use P90 magazines and shoot the 5.7x28mm bullet. The AR-57's shells eject from the magwell and it also has no gas system. It's available in three types, 16.04" barrel, SBR 12" barrel, and internally suppressed 12" barrel. It's very reliable and very accurate.
The AR-57 is a very cool rifle.
by qwdhjcadsvhbcwekrbvwue August 16, 2013
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a term used to describe a gambler's last, futile attempt to come up at a casino or gambling parlor by placing all his remaining chips on the roulette table and betting on black. the term is a reference to the Wesley Snipes vehicle "Passenger 57" wherein Mr. Snipes admonishes terrorist Charles Rane to always bet on black should he ever find himself playing roulette.
After three crushingly cold shoes of blackjack, Brian reluctantly decided to pull a passenger 57 with his last two hundred dollars.
by gem147 July 04, 2009
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Hienz 57 is a slang word (not actually a slur) for someone who is of many different ethnic groups.
Me I am part Mexican, Spanish, Italian, Irish and Japanese.
Or Tiger Woods who is every race White, Black, Asian, and American Indian. We would both be called Hienz 57.
by LocoMexicano June 06, 2009
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or "Tapping the 57," which means to masterbate.
"Yeah I couldn't fall asleep last night, so y'know...I tapped the 57."
by Jimmy Paladino July 26, 2005
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