Top Definition
A sex act. When you put a live fish up a girls ass until only the tail fin shows. Then you fuck her.
I just dirty mermaided her last night. I LOVE IT!
by Mudcrawler200 April 27, 2010
Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×