lit. when someone tells you you're fat, you pant (as if you were actually fat) (idiom); fig. Hey! I pay you a compliment, and you start bragging! (typically jocular and teasing); flattery, like perfume, should be smelled, not swallowed
trad. 說你胖你就喘
Also written 說你胖你就喘【shuō nǐ pàng nǐ jiù chuǎn】