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Usually referring to when you are watching porn and you are hours/multiple videos deep into side click videos when you find "the unicorn" or the perfect video to get you off and achieve orgasm. You often can not go back for the unicorn unless you again get lost in porn videos.
Ex. Person 1: "Dude you were in the bathroom for 45 minutes."

Person 2: "Sorry man, I got lost chasing the unicorn. "
by Stormehstar May 31, 2016
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