Bingo! That's something I know something about... \:\) Can I be taken as an expert for saying something...:)

I once came across a sentence like this and posted a similar question there. And I came to realize what it means by the help of all the guys here.

In the context I referred to, it's a boss who said this to one of his best employee: No matter whatever you are smoking, find someone in the street and train them to achieve this as well. Here, I think, the boss de facto is very pleased or amazed at what the employee has done and there is a flavor of joking or intimacy....

So I think the sentence can also be used in a postive way, if the listener is close or inferior to you...

Am I right? Just for your information, anyway. \:\)

Do inform me if you see any corrections needed in my written English.