| Rages |
| Vents |
| Blows |
| Bursts |
| Explodes |
| Loses it |
| Blows up |
| Goes off |
| Flares up |
| Goes nuts |
| Breaks out |
| Vesuviates |
| Boils over |
| Bursts out |
| Spews lava |
| Spews forth |
| Bursts forth |
| Emulates Etna |
| Loses control |
| Lets off steam |
| Goes ballistic |
| Spews lava, say |
| Pops one's cork |
| Blows off steam |
| Blows one's top |
| Hits the ceiling |
| Throws a tantrum |
| Blows one's stack |
| Flies into a rage |
| Gives way to rage |
| Loses one's temper |
| Blows volcano-style |
| Blows, as a volcano |
| Bursts, as a volcano |
| Ceases to be dormant |
| Comes out in a hurry |
| Makes like a volcano |
| Flies off the handle |
| Can't take it anymore |
| Explodes (of volcano) |
| Goes off volcanically |
| Flares up, as fighting |
| Has kittens, so to speak |
| Totally loses one's cool |
| Makes like an angry volcano |
| Doesn't contain one's anger |
| Becomes active, as a volcano |
| Releases gas, perhaps, as a volcano |
| What Old Faithful does roughly every 90 minutes |