Definition - What does Messalina Syndrome mean?
Messalina syndrome is a rarely infrequently used term for nymphomania. It takes its name from Valeria Messalina, the wife of the Roman Emperor Claudius, who was said to have a voracious sexual appetite.
Kinkly explains Messalina Syndrome
The most common modern usage of the term messalina syndrome seems to be in a pornographic context. Perhaps due to the cliched nature of using the term nymphomaniac in pornography.