萌逼大婶帅逼大叔
[méng bī dà shĕn shuài bī dà shū]
In a humorous, internet-slang manner, this suggests being both young-at-heart and mature; where '萌逼' translates to cute/casually cool and '帅逼' implies being dashing. This contrasts 'big auntie' with playful charm and 'big uncle' with cool appeal.