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1.
(adj.) mal-KAY-cur

You know something is bad for you, but you do it anyways.
Derived from the Latin phrase "Malus qui curat" or "bad but who cares"
Doctor: Have you been trying to fix your drinking problem?
Bill: I tried, but whenever the guys and me go to the bar, I just can't help myself. It's malquicure.
by Zanach June 22, 2012