What's on your mug?

Someone that fits perfectly between two people in a threesome

Guy 1: “Ay bro I wanna have a threesome” Guy 2: “Alright dude but let me be the unicorn this time”

By S1xtyNyn3

A woman who is sexually attracted to both men and women (e.g. bisexual/pansexual) AND is willing to join couples for a threesome. (the three of them have sex.) Named after a mythical creature because they're said to be rare

Unicorns aren't even that rare - I know a few bi chicks that like to swing

By wflowercrown

A unicorn are supposed to be an animal extremely unusually rare and beautiful hence when you find a person who has a look or style to them which you normally find a turn off or something your normally just not into at all attractive, that would make them a unicorn and just like with little girl and unicorns in some cases when you find a unicorn due to there rarity and shock factor can cause some people to become obsessed or have delusions of being in love.

You: hey that guy over there with the long hair is unbelievably hot. Friend: I thought your not into guys with long hair? You: I'm not. He's just a UNICORN. Friend: I can tell. You haven't stopped staring at the man since he got here.

By B. Rexx

When a person of any gender sticks a dildo on their forehead and a woman sits on the dildo while the person eats her out

Me and my girl love to Unicorn

By Bopstroya

While your lady is casually dropping a loaf, walk in and place the tip of your member up against her forehead whilst shouting “unicorn”. She will love this…results may vary

Bill: did you hear about Geoff? He gave his wife a unicorn…his wake is on Tuesday”

By Maybe on Wednesday