nice one!

nice one

informal An expression of praise for having done something well. (It can also be used sarcastically to mean the opposite.) Mary: "Dad, I got an A+ on my midterm exam!" Bill: "Nice one, sweetie!" Nice one, Frank, now we're going to have to rebuild this entire model from scratch.
See also: nice, one
Farlex Dictionary of Idioms.

ˈnice one!

(British English, spoken) used to show you are pleased when something good has happened or somebody has said something amusing: You got the job? Nice one!
See also: nice
Farlex Partner Idioms Dictionary
See also:
  • nice one
  • nice job
  • nice work
  • nice work!
  • nice going
  • Nice going!
  • have a nice one
  • (one) would (just) as soon (do something)
  • nice and some quality
  • peaceful