撕破脸

撕破脸	sī pò liǎn	to have an acrimonious falling-out / to shed all pretense of cordiality / to tear into each other
撕	sī	to tear
撕破	sī pò	to tear / to rip
破	pò	broken / damaged / worn out / lousy / rotten / to break, split or cleave / to get rid of / to destroy / to break with / to defeat / to capture (a city etc) / to expose the truth of
脸	liǎn	face / CL:张,个