Related Clues:

• Emulate 18 Down
• Emulate a geyser
• Post-meal sign of appreciation, in some cultures
• Gush, as a volcano
• Sir Toby of "Twelfth Night"
• Eject, as 16-Across
• Eject, geyser-style
• Sudden gushing
• Break out, as fighting
• Expel, as lava
• Belch
• Go off like Vesuvius
• Totally blow?
• Really lose one's temper
• Expel in a stream