Top Definition
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 02, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.