Derogatory term for a female that is miserable, bitchy, hates everyone, hasn't had sex in years etc. Such as a headteacher/principle at school for example.
I got caught skipping school last week and old vinegar tits has given me another detention.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi