Top Definition
a. someone you would never want to mess with

b. a general free spirit and sailor of the seas

c. straight gangster

*see biddie
lookout man: "Ahoy! I think I see that Cassidy Murphy on the horizon! Plan of action sir!"

captain of pirate ship: "We don't need to be a'messin in her waters maties. Best ship out."
by ewwwwin April 26, 2011

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