1 definition by _Dr_Whooves_

Top Definition
When a Unicorn Stallion is defeated by dark magic, there is a slight, but noticeable chance of developing bump on one horn.

Noted Side-effects: Sudden urge to throw your wife at evil. Lack of relevancy to story arc.
Shinning Armor had a bad case of horn herpes...
by _Dr_Whooves_ November 11, 2012
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