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general::
Phrase(s): (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.
McGrawhill's American Idioms And Phrasal Verbs