破口大罵

to abuse roundly

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

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

to scold / to abuse / to curse / CL:通[tong4],頓|顿[dun4]

tear or rupture / to have a tear (e.g. in one's clothes) / without restraint (e.g. of swearing)

to rain curses (on sb) / to let sb have it / to bawl sb out