Define a "Duck"

[Macho]

When you're offered $8milion, a career high payday against the longest reigning champion in the division but you decide to take $5million fighting a lesser opponent. And then you change your name to money.

Oh and you retire on the eve of the 2 biggest names in the division fighting each other.That's pretty much the definition of duck that comes to my mind. Oh and you do all this and procalim to be the best at 147.

Wow......damn Gamo , you hit Hard with that thing bro.....
Take care man , that nobody stick on you , that is something that hurt hearts and something that a lot of people dont believe........

You gave the most exactly Definition and i think that theres no other one...................