Retroactive hypocrisy
A special case of a strawman argument in which, after being criticized for being hypocritical, one intentionally mischaracterizes the criticism as being an additional layer of hypocrisy.
Person A) "It's pure hypocrisy that after being so concerned with Hillary's private emails, Republicans are shrugging after we find out Ivanka Trump has been sending official White House business emails from a private account."
Person B: "Oh, what? So you were perfectly fine with Hillary doing it, but you care all of a sudden when Ivanka does it? It's YOU who's a hypocrite."
Person A: "Don't pull that retroactive hypocrisy on me. I didn't say anything about my own approval or disapproval of either Hillary or Ivanka."
Person B: "Oh, what? So you were perfectly fine with Hillary doing it, but you care all of a sudden when Ivanka does it? It's YOU who's a hypocrite."
Person A: "Don't pull that retroactive hypocrisy on me. I didn't say anything about my own approval or disapproval of either Hillary or Ivanka."