• Blew
• Blew a gasket
• Blew one's top
• Blew, as a volcano
• Broke out
• Broke out of a deep rut
• Burst forth
• Burst forth from incredibly deep rut (7)
• Did more than smoke
• Flew off the handle
• Lost one's temper, maybe
• Recrudesced
• Spewed lava
• Suddenly spewed
• Went apeshit
• Went off
• What Etna was reputed to have done