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general::
Phrase(s): slim someone down
to cause someone to lose weight. • They started to slim her down in the hospital, but she gained the weight back as soon as she got out. • The dietitian slimmed down all the patients under his care., Phrase(s): slim down
to become thinner; to lose weight. • You have really slimmed down a lot since I last saw you. • I need to eat less so I can slim down. • He slimmed down quite a bit after he had his health problem.
McGrawhill's American Idioms And Phrasal Verbs