a mean something

a mean (something)

Said of something that is particularly impressive or appealing. I make a mean stew—are you sure you don't want to stay for dinner? You should ask that guy to join your band—he plays a mean sax.
See also: mean

a mean something

mod. having to do with an excellent example of the art of doing something well habitually. John plays the piano quite well. Fred says that John plays a mean piano.
See also: mean, something