The process of shaping ones hand like a duck bill in order to insert into a anal or vaginal cavity. This is often the first step to fisting.
Did you duck bill her first? YEY-UH!!!
© 1999-2015 Urban Dictionary ®
Free Daily Email
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from firstname.lastname@example.org. We'll never spam you.