Definition: The instant, soul-crushing clarity and regret that floods in approximately 2.7 seconds after sleeping with an ex you absolutely despise. Characterized by a cold sweat, profound self-loathing, and the visceral understanding that you’ve just donated your dignity to someone who already auctioned it off once. This state transforms your former lover from a momentarily appealing bad idea into your arch-enemy, complete with imaginary villain music and the urge to flee the country. The only known cure is a scalding shower and deleting their number during the Uber ride home.
Example: “We hooked up ‘consequence-free’ and now she’s my post-nut nemesis. I’m hiding in her bathroom Googling ‘witness protection for idiots’.” “Classic. Should’ve known your pants-down euphoria would summon your post-nut nemesis and her collection of your emotional red flags.”