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1.Sacred word who only an elite few possess knowledge of it's meaning.

Origin Unknown.
"Sir, WHAT IS 'Mankoo'?!"
"Classified, for the safety of the Public."

Mankoo?
or die?
by miker June 29, 2004
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word of excitement with some variations; mankola, mankizzle, mankool.
oh shit dude sander bought a new bong!

dude are you serious?! mankoo!!
by robcore June 28, 2004
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"Dude, did you go to the show last night?"
"Mankoo?"
"Huh"
"?"
by miker June 29, 2004
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