This is when you are Having sex with a girl with a prosthetic leg or arm. You take it off and wear it as a helmet while you keep fucking her.
She didn't have a problem with me pulling a Unicorn helmet while fucking her last night. I must say i felt like a is a mythological creature in bed!
by BigBGank March 5, 2010

Verb:
It's a blind surprise attack that desecrates the victim in a way he or she never knew was possible.
Accomplished by simultaneously lowering the head and extending the arm (fist clenched) in front. This gives the impression of a unicorn with your devastating fist as a horn.
It's a blind surprise attack that desecrates the victim in a way he or she never knew was possible.
Accomplished by simultaneously lowering the head and extending the arm (fist clenched) in front. This gives the impression of a unicorn with your devastating fist as a horn.
-Dude that kid was harassing me yesterday...
-Bro give him a unicorn punch, he'll buzz off!
punch attack devastating unicorn
-Bro give him a unicorn punch, he'll buzz off!
punch attack devastating unicorn
by bobchees3 November 19, 2011

A vampire unicorn is a mix between a vampire and a unicorn. They only come out at night to suck the blood of unsuspecting victims, while jumping over rainbows. They live in candy mountain, and are on the endangered species list because meth-zombie poachers are always shooting them. It rumored that a horn from a vampire unicorn can go for as much as 6 grams of meth and 4 interracial hand jobs.
Holy shit! I just a meth addict dragging a vampire unicorn down that aly...someone call the game and fish!
by 7xwinner May 20, 2011

A sexual act where the male attaches a strap-on to his head and undergoes fornication while the female is menstruating.
by Clint Torris December 9, 2008

n. Gay act meaning anal penetration using a strap-on dildo or other falic-like device fixed to ones forehead.
by lowfan January 13, 2011

A person who is extremely attractive and appealing, but is rarely seen in public and is completely unknown to most people.
A: Oh my god, I met this guy last night. He is so hot and nice and gentlemanly! Do you know him?
B: I don't and I don't know anyone who does! He must be a Social Unicorn.
B: I don't and I don't know anyone who does! He must be a Social Unicorn.
by sexxxy1 January 17, 2011

A sexual position that produces almost no pleasure for either of the two participants. A male must insert his testicles (both are mandatory) into the females anal cavity while she is on all fours. Thusly his erect penis will protrude from her cheeks creating the unicorns horn. The man can then spread his arms, or "wings" outwards placing the finishing touches on the flying unicorn.
Kevin elegantly spread his wings atop his glistening steed of a unicorn, who was quite the hot little number, creating the perfect Flying Unicorn.
by Klusky May 15, 2005
