Irrupt
[i-ˈrəpt]
Verb
Latin, 19th century
To enter suddenly or forcibly; to become suddenly active; referring to a natural population, to expand suddenly in numbers due to a change in the natural balance
Irrupt is very close in sound and meaning to erupt, though only irrupt can mean to enter a room uninvited.
Example: After recent Supreme Court decisions, I feel the number of concerned voters will irrupt into positive social change.
Chief Writing Wolf 