Green’s Dictionary of Slang

legend n.

an exceptional person.

[Aus]T. Winton Lockie Leonard, Legend (1998) 133: I think you’re a total legend. Even if you do hate my guts.
[UK]A. Warner Sopranos 62: Oh! He’s a legend, Harry Cross.
[Aus]L. Redhead Rubdown [ebook] Going home with two sheilas, Christakos? You bloody legend!
[Aus]N. Cummins Tales of the Honey Badger [ebook] I was a bit of a legend and didn’t hate the attention.