I know what you mean...

A variation of "that's what she said." Usually expressed with obvious knowledge, but in fact, they are taking your words completely out of context.

Sam: Are Tracey and Caleb expecting kids soon?
Leslie: No... they're just taking some time to get to know each other...
Sam: Ohh, I know what you mean...
Leslie: *confused stare*

by NessaChelle June 19, 2010