Definition of janny:
(n) :
Alternative form of jannie (“janitor, moderator”). [(chiefly Scotland, colloquial) A janitor.]
(n) :
(Newfoundland) Alternative form of janney (“a mummer”). [(Newfoundland) A mummer.]
(v) :
(Newfoundland) Alternative form of janney (“take part in mumming”). [(Newfoundland, intransitive) To take part in mumming.]