子供の喧嘩に親が出る（こどものけんかにおやがでる）

Japanese vocabulary

Meaning: when kids get in a fight, their parents come to their aid; yelping curs will raise mastiffs

See it used in real works

• Example sentences from Japanese novels & web fiction (Massif)
• Hear “子供の喧嘩に親が出る” pronounced in real videos (YouGlish)