The oilskin of the home is not for applying on strangers.
Comment
The traditional proverb suggests that home affairs should remain secret and should not be revealed to strangers as this is tantamount to washing dirty linen in public.
Postproverbials
Postproverbial: Kagutuĩ ka mũciĩ, ti kainooro. Translation: The oilskin of the home is not for ‘inooro’ station.