Top Definition
1. to penetrate another with a dildo strapped to ones forehead, like a crazed unicorn.

2. to battle a rival lesbian to near death by clashing forehead dildos in a stag-like manner.
1. The whiplash injury was a result of drunken screwnicorning.
2. The angry girls were screwnicorning over the hot chick.
by CeltGal April 03, 2007

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.