Definition of "erupt"

erupt

/ɪˈɹʌpt/

verb
third-person singular simple present erupts, present participle erupting, simple past and past participle erupted
1. (intransitive) To eject something violently (such as lava or water, as from a volcano or geyser).
2. (intransitive) To burst forth; to break out.
3. (intransitive, figuratively) To spontaneously release pressure or tension.
  Quotations
  And Stamford Bridge erupted with joy as Florent Malouda slotted in a cross from Drogba, who had stayed just onside.
  2010 December 29, Chris Whyatt, “Chelsea 1 - 0 Bolton”, in BBC‎
  Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
  2012 January, Michael Riordan, “Tackling Infinity”, in American Scientist‎, volume 100, number 1, archived from the original on 30 April 2013, page 86
4. (intransitive, biology) (Of birds, insects, etc.) To suddenly appear in a certain region in large numbers.
  Quotations
  After particularly good seasons, flocks "erupt" from their breeding grounds and appear in reed beds where they have not been seen for years, if ever.
  1988, Michael Cady, Rob Hume, editors, The Complete Book of British Birds, page 242