装孙子

装孙子:

Literally means:

act as grandson; pretend to be helpless and miserable

Actually means:

孙子, grandson. It figuratively refers to one who is of the younger generation, or one who holds a lower position.

The whole phrase figuratively means putting on a modest or humble front. It usually connotes that one acts in a submissive or humble manner in the face of a powerful or influential person. Derogatory

孙子，儿子的儿子，这里比喻辈分很低，没有地位的人。

装孙子，故意表现出谦虚、恭顺、低人一等的样子。多用来指在有权势、有地位的人面前服软服输、或低声下气。具有贬义色彩。