What is a mansplanation? Here are some definitions.
Noun
(informal) A condescendingexplanation given by a male explainer to a female listener, especially to explain something the listener already knows, presuming that she has an inferior understanding of it because she is a woman.
Vesta's left me alone with him so he can give me some sort of Big Daddy lecture. Because the thing I need right now is a mansplanation of the error of my thinking.