Joke Collection Website - Cold jokes - What does "selling prawns" mean in Henan dialect?

What does "selling prawns" mean in Henan dialect?

How can I put it? I'm from Luohe, Henan, and I don't know what this sentence means. But I often tell my friends. Generally speaking, this sentence is said by a close friend, only when joking. I don't think this sentence should be insulting, but it may (just may) be a little close to the meaning of "parallel imports". It's just a personal opinion, not necessarily accurate.