Bless your heart. You may now change your pink shirt to the blue one
Meaning that your ignorant insolent baseless accusations and calumnies having been exposed for what they are, then in lieu of any possible defense, your recourse is a pitiful ad hominem attempt, or what the RM refers to as a "spitwad." Whose advice is appropriate in this thread as well:
If the other guy is throwing spitwads at you on an “open” thread it probably means he has run out of ammunition. Take it as a backhanded compliment. You won, walk away.