Idiom of the day :- Do someone a good turn

Idiom of the day :- Do someone a good turn

Usage, examples and definition of the Idiom :-

‘You’ve done a number of favors for me,’ Brewster said, ‘so allow me to do you a good turn. Let me take you out to lunch today.’ Slightly dizzy, Brewster’s friend agreed. He hadn’t expected Brewster to do him a good turn. To do someone a good turn is to do something nice or helpful for someone.