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A sudden urge to smirk or grin patronizingly at someone when they say something stupid (though you probably don't want them to see) or something you shouldn't be laughing at.
Often irresistible. Coined by poet Sanbud Tehrani.
"Don't bother, He knows I try to fight this
But whenever I hear Our Father or Allah Akbar
I feel a bout of smirkitis."
by TFE August 22, 2007
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