Related Clues:

• Blow up in middle of Hertfordshire, in brief
• Gush like lava
• Eject from seat on bus at terminal
• Blow, like a volcano
• Emit, like an active geyser
• What volcano may do during another upthrust
• Defeat finally complete after reversal, lose it
• Boil over with umpire finally at game point
• Flow out forcefully
• Go nuclear
• Forcefully eject, like a volcano