1 definition by Hells Pastry

Top Definition
To express extreme displeasure with something or someone. Another form of "uncool" or "not cool".
Guy 1-"Hey man I clogged your toilet."
Guy 2-"Dude, negative cool."

Girl-"Baby.....I'm pregnant."
Guy-"............Negative cool."
by Hells Pastry August 27, 2008

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