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A large number or huge amount. From the French beau coup. Brought to the United States by retuning Vietnam war veterans who heard it from the heavily French influenced Vietnamese.
We ran into boo coo VC just north of the fire base.
by Eric Peterson July 07, 2005
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From the French Beaucoup - meaning much or many
From the movie Full Metal Jacket..the Me sucky sucky scene. The Asian whore doesn't want to have sex with the black soldier because she thinks he is "Too Boo-coo" - too much, too big
by Brooklyn Boy July 06, 2005
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"boocoo" is the illiterate Americanized version of the French adverb "beaucoup" meaning much or many, that was used in Vietnam.
An expression commonly used in Vietnam was, "boocoo dinky dow", spelled correctly would be "beaucoup dien cai dau" meaning much crazy in the head or perhaps as the Vietnamese may have said, crazy as a kicking rooster, much like the American expression, "mad as a wet hen".

dien = crazy dau = head and captalized Dau = rooster
by Bill Blackley November 14, 2007
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a word in use meaning a lot of
There are boocoo people out here.
I have boocoo pairs of shoes.
I caught boocoo beads at the parade in New Orleans.
by quotshun February 16, 2010
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Slang for Sex.

From the movie Full Metal Jacket..the Me sucky sucky scene.
The Asian whore doesn't want to have sex with the black soldier because she thinks he is "Too Boo-coo"
'No Boo-Coo fo yooo'
by Dont-Be-Skurrd June 12, 2004
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