An informal 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.
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