The numerous attempts to rebuild something, only to be slowed down by banalities
We would have had the Brantford account all set and ready, but Bill made it into a real Manhattan Project by insisting on obscure figures from 1994.
by Brian Colby November 06, 2003

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A U.S. Agency that was responsible for making Atomic Bombs during World War Two.
J. Robert Oppenheimer and Albert Einstein were working for the Manhattan Project.
by Chairman November 06, 2003

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Slang: a project which, over time, involves an increasingly large number of people and expense.
Origin: The US project during the second world war to devolop the Atom Bomb.
As they kept wanting more functions, more testing and documentation, what should have been a simple job turned into the Manhattan Project.
by John Sheffield November 07, 2003

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Um, it happened early WW2-the end of it. The project that created the nuclear bomb.
.... do i really need one?
by DIM November 07, 2003

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When having anal sex with a girl you cum inside her, withdrawl, then slap her ass/push on her midsection in the front to induce her to fart your cum out. Works best with doggy style or during snowmobile.
Dude, Jovann Manhattan Projected on me last night and it ended up on my own cum ended up on my chest.
by slaveness28 April 15, 2009

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Moving to Manhattan with the goal of having sex with as many woman as one can within a years time.
Next month I moving to New York to start the Manhattan Project.
by Anonymous November 07, 2003

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