Diu

diu: A cantonese word for fuck. Commonly used inconjunction with explicit, specific and graphic descriptions of the object that is being fucked.

please: used in polite request; "please pay attention"

Some people mixes these two words up. you say "please" if you want something.
You don't say "Can you give me that? Diu." You'll probably not get what you want.
You say "Can you give me that? Please?" You'll then probably get what you want.

But some people uses "diu" nonetheless, and expect others to comply. But as expected, people don't. So then they go around bitching that guy is a jerk and he's a weirdo and he suck donkey cock and all the other unpleasantries.

It's a weird world, after all. Diu....