do (someone) a good turn

do (someone) a good turn

To do something that helps, aids, or benefits another person. If you do someone a good turn, they are much more likely to help you out in the future. John did me a good turn last year, so I'd like to return the favor somehow.
See also: good, turn
Farlex Dictionary of Idioms.

do somebody a good ˈturn

be helpful to somebody; do somebody a favour: I did you a good turn, now you do me one.
See also: good, somebody, turn
Farlex Partner Idioms Dictionary
See also:
  • do somebody a good turn
  • change off
  • a good Samaritan
  • good Samaritan
  • Samaritan
  • strike a blow for
  • strike a blow for (something)
  • strike a blow for something
  • growth opportunity
  • have (someone) on a string