The mermaid Filet is the process of opening the mermaid's tail. The girl ties her ankles together (making the mermaid tail) and the guy tries to enter her by any means necessary. The mermaid flips around on the floor like a fish out of water trying to avoid being speared.
Blackbeard was know for enjoying Mermaid filet on the deck of the pirate ship.
by Ashdog January 05, 2009