IRRUPT
explode, irrupt
(verb) increase rapidly and in an uncontrolled manner; “The population of India is exploding”; “The island’s rodent population irrupted”
erupt, irrupt, flare up, flare, break open, burst out
(verb) erupt or intensify suddenly; “Unrest erupted in the country”; “Tempers flared at the meeting”; “The crowd irrupted into a burst of patriotism”
intrude, irrupt
(verb) enter uninvited; “They intruded on our dinner party”; “She irrupted into our sitting room”
Source: WordNet® 3.1
Etymology 1
Verb
irrupt (third-person singular simple present irrupts, present participle irrupting, simple past and past participle irrupted)
(transitive) To break into.
(intransitive) To enter forcibly or uninvited.
(intransitive) To rapidly increase or intensify.
Etymology 2
Verb
irrupt
Misspelling of erupt.
Source: Wiktionary