Top Definition
A Hickeyrilla is a type of unicorn that poops magicla gold coins and snorts out rainbow butterflies. If you eat their magical gold coins that they poop, you can fly and speak 'bird language'.

The favorite thing Hickeyrilla's like to do, is beat up little irish midget (leprechauns), play hoscotch with fat people, and watch the video where Justin Bieber is shot to death by the CSI.
Hello fat person" said the Hickeyrilla "Wanna go beat up little irish midgets and play hopscoth with me?
by Nyan cat FTW May 12, 2011

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