The One That Got Away

I had you on, but for a moment, 

And lost you in the struggling torrent. 

Your girth was evidently seen,

With scales of gold and muted green.

That story told of you to mates,

Brings up questions and debate.

But by oath, I swear the prize,

Was of an unbelievable size.

My tasty meal it would have been,

Is now a yarn, that I would spin.

About the one that got away,

And lived to see another day.