我会瘦你会饿
[wŏ huì shòu nĭ huì è]
I Will Get Slim, And You'll Feel Hungry. It implies an interesting contrast. It's commonly used in contexts where one person is making a change (getting healthy), but in turn 'hurts' another somehow ('makes them hungry'), usually used between close people, like friends or family, expressing humorously and lightheartedly.