Her indoors - Idioms by The Free Dictionary
old-fashioned One's wife. A reference to the fact that wives were traditionally expected to remain primarily indoors to keep the house and raise children. Primarily heard in UK. I never know what to get her indoors when our anniversary rolls around.
her indoors a humorous reference to a man's wife. British informal
References in periodicals archive
Either I should take it easier on her indoors
in future or these guys should get out from behind the counter more often.