I know what you mean

I know what you mean

I understand and relate to or agree with what you're saying. They've been excluding me too lately, so I know what you mean about feeling left out. A: "Ugh, all this rain is so depressing." B: "I know what you mean—it's really been bumming me out."
See also: know, mean, what
Farlex Dictionary of Idioms.

I know (just) what you mean.

I know exactly what you are talking about, and I feel the same way about it. John: These final exams are just terrible. Bob: I know just what you mean. John: Why do we have to go through this? Mary: What a pain! I hate annual inventories. John: I know what you mean. It's really boring.
See also: know, mean, what
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • I feel that
  • I feel you
  • feel someone
  • (Do you) know what I mean?
  • (Do you) know what I'm saying?
  • know where (one) is coming from
  • know where one is coming from
  • know where someone is coming from
  • (one) doesn't know which way is up or down
  • give somebody/get a roasting