(See UD Definition for "Pegging")
Last Thanksgiving, my aunt accidentally unicorned my beer bottle and made my gums bleed.
(Masturbation and non-sex non-kissing yet sexually related groping are irrelevant when deciding one's unicorn status.)
2: "...Actually, I had my first kiss yesterday..."
1: "...OH GOD, I'M THE LAST UNICORN!!!"
The opposite of the Minotaur.