ATHD - What does ATHD stand for? The Free Dictionary
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By the next turn (line 8) after the second series of athd ac/id ac/id speaker Al stops and tires to give an account of her decision for having lowlights done by incompetent beauticians.
Thus ac/id athd (ac/id) provides a heightened claim of agreement and understanding with the speaker to satisfy the speaker that the conversation can move on.