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Falling asleep while performing cunnilingus.
You remember Friday night when Gary was going down on that chick and passed out half-way through? A clear cut case of narcolingus if I've ever seen one.
by Crayon73 October 04, 2010
To fall asleep while performing oral sex on a woman.
I was so drunk last night that I suffered an attack of narcolingus while dining at the y.
by kitchenwarehelmet August 06, 2009