Top definition
A horrible disease that makes girls ( sometimes gays) among the ages 13-17 become inlove with unicorns. some signs of unicorn disease may be buying unicorn toys, stuffed unicorns, neighing, and wearing lots of glitter. Unicorn disease might also be referred to as Unicorn syndrome.
your glitter is getting all over me " "yeah sorry i just have unicorn disease
by unicorndiseaseisnotacoolthing December 29, 2010
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