The opposite of Post-nut Clarity, a man's state of mind in which horniness trumps thought. Can lead to serious fucky wuckys.
Blake: "In my state of Pre-cum Dumb I thought Brie Larson was hot"
Dan: "Yeah, I almost fucked a chick with a dick when I had Pre-cum Dumb"
Sam: "You guys need to jerk it more to get rid of Pre-cum dumb and get post-nut clarity"
by CitywideNut February 25, 2021
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