1. An angry dispute
   "they had a bust-up";
   - quarrel, wrangle, row[2], words, run-in [informal], dustup [informal], blue [Austral, NZ, informal], dust-up, barney [Brit, informal], slanging match [Brit, informal], ding-dong [Brit, informal]

1. [informal] Smash or break forcefully
   "The vandals bust up the abandoned car";
   - wreck, wrack [archaic]
    
2. End a relationship or partnership
   "They bust up after dating for two years"

Derived forms: busting up, bust up, bust-ups, busts up

See also: bust [informal]

Type of: conflict, destroy, difference, difference of opinion, dispute, ruin