0 the act of explaining something to someone in a way that suggests that they are stupid; used especially when a man explains something to a woman that she already understands: --
Enough of the mansplaining, OK? I get it.
The Senator got away with mansplaining during a hearing.
You can't just shout down any disagreement from a man as "mansplaining".
Mansplaining has become one of the defining phenomena of the 21st century.