A slang word originating in Northern Italy (Piedmonte to be precise) and an alternative to "bella donna" or "beautiful woman". It originally came into use circa 1971 and most recently has become popular in the South East of England. Unfortunately an aversion to airbourne primates has meant that the term Rondelli has not been adopted further afield.
I was in the pub the other day a met an absolute Rondelli.
This town is so boring, I wish there were more Rondelli's around