Top Definition
having cancelled an action or event
John Doe was gonna join us for hockey but Jane nixxed that idea.

We were workin' on throwin' a boozer but our landlord nixxed our plans
by RJBrown January 20, 2006
having the worst luck possible
he failed his exams,his girl left him and now his dad's not giving him allowance for a mont.he's nixxed
by nick sam kirkland January 19, 2006
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