A four-character idiom beginning with the word stick

Four-character idioms beginning with "bang":

The circuit breaker went up.

Pinyin:

[bàng dǎ yuān yāng]

[Interpretation]

A stick breaks up a pair of mandarin ducks. Metaphor to break up loving couples or lovers.

[source]

Meng mingchengshun's record of the parrot's tomb: "he has a pair of children, who are affectionate and have a good rest."