Green’s Dictionary of Slang

rorty n.

[rorty adj.]

a high-spirited individual.

[UK]Western Daily Press 20 Aug. 3/7: It’s nice, if it’s naughty! I’m a regular rorty.
[Aus]Sun. Times (Perth) 11 Nov. 1/1: This paper’s warning to women and children is pooh-poohed by these river rorties.