I think we can safely declare the 'slur' was a fabrication by Sassy Stew.
Id offer the cut her a break and say 'maybe she was given bad info', but given the fact she hasnt offered any corroboration nor has she retracted any 'fact', she seems to be willfully spreading this falsehood.
Kinda like cops when they maybe make a mistake- their tactic? double down, never admit it was a mistake.
Oh, wait- she was a cop, right?