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magic number

The number of people that one has had sex with.
My magic number was eight before Spring Break. I broke double digits before coming back home.
by Mike January 6, 2005
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Rule Number One

Don't post useless definitions on UD. Namely you, chris.
omfg i gotz teh bestest ideea evar! i iz gona postt thaat im coolz undur teh definition "Rule Number One"! geenius!
by Karonaway December 3, 2007
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Related Words

Number 3

The act of making thick in the warm / doing sex on a lady / putting your choo choo train in a womans tunnel
Im gonna make sex on a lady and number 3 in her warm
by ToppingPilot20 November 7, 2020
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matching numbers

When an american collectors car has the original engine, frame and gearbox. All stamped serial numers match.
Heard a Hemi Cuda was sold at Scottsdale for 1 million. But it was matching numbers.
by Leif Persson February 15, 2006
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Bill Clinton number

The number of people a person has had sexual intercourse with. So called because according to Bill Clinton, oral sex isn't sex.
by halcyontrooper April 2, 2011
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magic number

A constant compiled into a computer program or used in a file format for the purpose of being identifiably unique. A number which could only exist in memory on purpose and rarely by accident. For example, 0 is a bad choice for a magic number, since it's the default value for memory when a computer is turned on.

Programmers use them to quickly validate a larger data structure which could crash if it guesses the type wrong, using the theory that whatever code put the magic number there probably got the rest of it right, since they would have made it store the magic number AFTER everything else checked out.

Usually it's something easy for a programmer to remember, like DEADBEEF or B00B135 or something equally assinine.

It's like a secret signal or whistle you might use with friends when trying to coordinate something sneaky.
I fed an mp3 I accidentally renamed to a avi into windows media player, but it didn't crash because it checked the magic number first.
by pr0ntab January 8, 2004
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The Numbers

A mysterious sequence of numbers that keeps appearing, either in fully or individually, on the American hit TV drama Lost. The sequence is 4-8-15-16-23-42.
"Wait, that metronome has '108' on it! Isn't that the sum of the Numbers?"
by Shay Guy October 23, 2006
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