Related Clues:

• Doesn't contain one's anger
• Blows up
• Flies into a rage
• Loses one's cool
• Blows one's stack
• Flies off the handle
• Wigs out
• Breaks out
• Comes unglued
• Loses one's temper
• Emulates Etna
• Has a cow
• Lets off steam
• Bursts forth
• Totally loses one's cool