expression, godan verb (-u)
complain; find fault; interfere; say critical things
Used when someone keeps making critical remarks, meddling, or raising objections about something. Often implies nagging or unwanted interference.
人のやり方にとやかく言うのはやめてください。
Please stop complaining about other people's way of doing things.
He always finds fault with my clothes.
親戚が進路にとやかく言ってきて困っている。
My relatives keep interfering in my career path, and it's troublesome.