that person (red-light district)
Archaic honorific pronoun for 'that person', mainly used in red-light districts. Not used in modern standard Japanese.
In old red-light district speech, 'ano-san' referred to that person.
Archaic honorific second-person pronoun, also associated with red-light district usage. Extremely rare in modern Japanese.
'Ano-san, you haven't been around lately,' a courtesan of old would say.