Mutton dressed as lamb
Definition 1 of 1
Pro Tip 1/3Cultural Sensitivity
Be cautious using this phrase; it can sound rude or offensive if misunderstood or used in the wrong context. 
Be careful not to describe someone as 'mutton dressed as lamb' in a formal setting; it might not be well-received.
Pro Tip 2/3Emotional Connotation
This phrase often carries a negative emotional tone, implying disapproval of someone's fashion choice. 
When he called her 'mutton dressed as lamb,' everyone sensed the critique on her outfit was harsh.
Pro Tip 3/3Conversational Use
Primarily used in informal speech among friends or acquaintances, rarely in formal dialogue. 
At the reunion, some whispered that Ms. Jackson looked like 'mutton dressed as lamb' with her glittery dress.