be there (for one)
To be willing and readily available to be a source of comfort and support for one in the face of hardship or suffering. Through thick and thin, my wife, Julia, has always been there for me. You've got to be there for her while she gets back on her feet.
See also: there
To have done or experienced something before. This is a set phrase that can be used without a subject. A: "I got back to my car a mere three minutes after the meter expired, and I still got a parking ticket!" B: "Ugh, been there." Don't worry so much about failing a test, we've all been there.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
(I've) been there(, done that).
Inf. I know exactly what you are talking about from my own experience.; I know exactly what you are going through. John: Wow! Those sales meetings really wear me out! Jane: I know what you mean. I've been there. Sue: These employment interviews are very tiring. Bob: I know it! I've been there.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.