You know what you're saying?

A good enough response to the sixth or seventh time somebody has asked you if you know what they are saying, as smart ass as it might seem.

After about the sixth or seventh time somebody has asked you if you know what they are saying, it's not a bad idea to ask them you know what you're saying? before they turn you both into one of those guys, especially if that isn't you.

You know what that means...

Fish!
Meme

video:You know what that means...
Video:FISH!

Reap What You Sow

The act of having impregnating a woman on a one night stand. And not showing up until the child's 18th birthday to say "Happy Birthday, you little bastard!"

Wow Kyle, took you long enough to Reap What You Sow

Do you know what?

Legend has it he still does not know what

I don't know why they wont let me change the plan. *long pause* Do you know what?