When your anal sphincter and esophageal sphincter are switched at birth by some freak accident and you end up a chronic shit-talker. You also talk out of your ass.
Example: Damn, she sure has some shit to say about everyone. Must have a bad case of Reverse Sphincter Syndrome (RSS)... She better get that checked out ASAP.
by Alaliniti October 24, 2018
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