Idiom of the day :- Lay down the law

Usage, examples and definition of the Idiom :-

‘The way my employees are behaving is terrible,’ Grouch grumbled. ‘I’m going to lay down the law and tell them to concentrate on their work.’ To lay down the law is to say something or give an order in a way that says ‘you will obey me or accept my word without argument or question !’