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A term implying that the aforementioned action is highly discouraged and frowned upon.
Used and popularized by Korean rapper Masta Wu in SMTM3(Show Me the Money 3), a Korean rap survival tv show.
Vasco: *performs a rock stage in a tv show especially designed for the genre of rap*
Masta Wu: That's no-no.
by enaak September 09, 2014
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