留鬍子

Simplified: 留胡子

liúhúzi ㄌㄧㄡˊ ㄏㄨˊ ˙ㄗ

    • to leave a matter unfinished with loose ends

Character by character

Saying俗语俗語

Idiom惯用语 · Rarely used now

Literally
grow a beard
Meaning
Same as 留尾巴: to leave a matter unfinished with loose ends.

Sources