Idiom of the day :- Call it a day

Usage, examples and definition of the Idiom :-

‘Let’s call it a day and go home,’ Teddy said. Because the person he’s addressing doesn’t understand the expression, it’s up to me to explain that when we call it a day,we stop whatever we are doing, regardless of the time. ‘After twenty years as a postman, Mr Burr called it a day and retired.’