Definition of "Erupt" :

verb: become active and spew forth lava and rocks

"Vesuvius erupts once in a while."

verb: erupt or intensify suddenly

"Unrest erupted in the country."

verb: become raw or open

verb: start abruptly

verb: appear on the skin

"A rash erupted on her arms after she had touched the exotic plant."

verb: break out

"The tooth erupted and had to be extracted."

verb: force out or release suddenly and often violently something pent up

"Erupt in anger."

verb: start to burn or burst into flames