mutton dressed as lamb idiom UK informal disapproving
扮俏（或装嫩）的妇女
a way of describing an older woman who is dressed in a style that is more suitable for a younger woman
Do you think this dress is too young-looking for me? - I don't want to look like mutton dressed as lamb. 这件连衣裙对我来说是不是太年轻了？我可不想装嫩。