That's what most people ask, actually.
It's funny, most people just ask what it is, instead of looking it up theirselves.
Like, there's tools like urban dictionary, or just google.
Instead of making other's work for you, shouldn't you do it yourself?
In this case, look it up yourself, instead of waiting for someone to explain to you?
It's simple.
You can just do it yourself, right?
Easily, instead of asking others, you can do it yourself, which is the best way of life.
Anyway, if you really want an answer from us, here's the best answer I could give for "What do you mean?".
www.google.com