T.I. -- I'll Chew Your Throat off Your Neck ... If You Talk Crap on my Family

T.I. took direct aim at Azealia Banks for trashing his wife, warning that she may have a serious neck problem is she continues to insult Tiny.

Banks ignited the war by taking a shot at T.I.'s wife Tiny this week when she tweeted, "U want no mediocre but ... Have you seen your wife?" ... which is a play on T.I.'s new song, "No Mediocre."

T.I. responded with force on Twitter ... and then made it clear to our photog last night ... he's fair game but he will go after ANYONE who takes cheap shots at his family.