A theoretical person of either gender in any context whose qualities are so idealized that it precludes their existence. Someone who is literally too good to be true.
Amy: "I've been on seventy four dates in three months and I haven't met any quality guys yet!"
Bob: "Guys? Sounds like you're trying to date a unicorn!"
Bob: "Guys? Sounds like you're trying to date a unicorn!"
by RogueEconomist August 13, 2015

A pretty girl or woman that loves comic books, sci-fi and gaming. They're out there, but it's impossible to catch one.
by Bubble Shoot October 24, 2011

A person you know that is your perfect match, and you could always picture yourself being with them...but you can't have them, or have never dated them, or they have kept you in the friend zone.
by alexa7590 January 15, 2009

A magical animal with a horn. This horn grants many wishes and sparkles. The unicorn was last seen at Landchoo Park in NeverExistedPlace at Sunday Soonember 6th 1893. Rumor has it, if you smell a unicorn fart, you’ll turn into a fairy.
by AllPandasLoveMe June 16, 2019

Something you will never see
It has a magicial horn what let’s it fly and gain powers
Taller than you would expect
People describe people as it if they are wierd
It has a magicial horn what let’s it fly and gain powers
Taller than you would expect
People describe people as it if they are wierd
You are such a unicorn
Your a unicorn
No you
No you
Ok I am a unicorn
(All of this conversation was from one person see that’s a unicorn in one way the other is a magical creature
Your a unicorn
No you
No you
Ok I am a unicorn
(All of this conversation was from one person see that’s a unicorn in one way the other is a magical creature
by Trushbetold October 30, 2018

A single bisexual female who has intimate relations with couples in the swinger community. Some unicorns are only around for hot one night stands. Some unicorns form long term relationships with the couple(s) they become involved with. This kind of woman is indeed rare, so rare some say they've never met one.
We're really hoping to finally catch a unicorn at the swinger's club tonight.
We keep a unicorn around to spice up our marriage.
Hey babe, want to see if our unicorn wants to join in this Friday?
We keep a unicorn around to spice up our marriage.
Hey babe, want to see if our unicorn wants to join in this Friday?
by CharCharLottie October 3, 2018

A woman who gives you sex so amazing you speak in tongues and forget what planet you live on. The average adult male will only come across 2 to 3 unicorns in his lifetime. It is highly suggested you grab the horn tight and don't let go!
Lauren fucked me so good last night I forgot how to speak English for 3 hours. She is most definitely a unicorn.
by DC42182 December 5, 2013
