mansplaining

Mansplaining (a blend word of man and the informal form splaining of the gerund explaining) is a pejorative term meaning (for a man) to explain something to a woman in a condescending, overconfident, and often inaccurate or oversimplified manner without regard to her own expertise.

Traditionally, mansplaining differs from other forms of condescension in that it was said to be rooted in the assumption that a man is likely to be more knowledgeable than a woman. However, it has come to be used more broadly, often applied when a man takes a condescending tone in an explanation to anyone, regardless of the age or gender of the intended recipients: a "man 'splaining" can be delivered to any audience.