lucky you, me, etc.

lucky (one)

An expression of pleasant surprise following some good fortune. Can be used ironically to express the opposite. You found $20 in your pocket? Lucky you! Oh, lucky me, I've been selected for jury duty.
See also: lucky
Farlex Dictionary of Idioms.

lucky ˈyou, ˈme, etc.

(spoken) used to show that you think somebody is lucky to have something, be able to do something, etc: ‘I’m off to Paris.’ ‘Lucky you!’
See also: lucky
Farlex Partner Idioms Dictionary
See also:
  • lucky (one)
  • I never!
  • (well,) I never!
  • vote of confidence
  • GLWT
  • as one does
  • nice weather we're having
  • take (something) under consideration
  • deed
  • (one's) good deed for the day