lost their temper
- blew upBurst from pressure
- explodedBurst violently outward
- snappedBroke with sudden force
- flew off the handleReacted with sudden rage
- saw redBecame intensely enraged
outburst · meltdown · tantrum · rage · fury · screaming · shouting · slammed · heated · boiling · seething · fuming · erupted · lashed out · flipped out · volatile · hotheaded · unhinged