Ask for a help.what's " fish stoty"?

I think that's supposed to be "fish story."

Fisherman are infamous for telling stories of the huge catch that got away. A fish story is something that has been embellished or made up.

Thank you!
Thank you very much,From your answer ,i have known the meaning ,thank you again.I want to know how to study English ,your English is so good!

I'd be hopeless with Mandarin, so more power to you for learning English.