also: マンスプレーニング
noun
mansplaining
A loanword from English, used in Japanese to refer to a man explaining something to a woman in a condescending or patronizing manner, often assuming she knows less about the topic.
彼のマンスプレイニングにはうんざりだ。
I'm fed up with his mansplaining.
会議中、またマンスプレイニングが始まった。
During the meeting, the mansplaining started again.
Borrowed from English 'mansplaining', a blend of 'man' and 'explaining'.