From Wiktionary, the free dictionary
Literally, “to fight like dustbin-rakers”, or more loosely translated as “to argue like rag-gatherers”.
- IPA(key): /sə ba.tʁə kɔm de ʃi.fɔ.nje/
se battre comme des chiffonniers
- (simile, informal) to fight very violently
This is the reciprocal se.