Interfering or meddling by offering unsolicited opinions or intervening in someone else's affairs.
親は子どもの恋愛にあまり口出ししないほうがいい。
Parents shouldn't meddle too much in their children's romantic relationships.
会議で余計な口出しをすると、信用を失うことがある。
If you make unnecessary interjections in a meeting, you may lose credibility.
上司の口出しが多くて、部下が意見を言いにくい雰囲気だ。
The boss interferes a lot, so subordinates find it hard to voice their opinions.