Tutoring students in the evening is a busman's holiday for our English teacher.
•It's a bit of a busman's holiday to ask her to be wardrobe mistress for our amateur production in the summer. She's a professional dressmaker.
She is a restaurant owner on a busman's holiday this weekend - cooking Sunday lunch for her mother.
праздничный или выходной день, проведённый за обычной работой