A dude who walks around in public with a visibly erect penis.
Oh my God! It looks like Mike is wearing sweatpants without underwear again, and he's turned on. What a unikorn!
by Peter Phil McCracken March 10, 2009
It is when something or someone is Beyond Awesome. When awesome isnt enought to describe the word.
Wow this Chinese food is so total Unikorn, it blows my mind.
by Mindy & Brandon November 03, 2009