outpouring

out- +‎ pouring

outpouring (plural outpourings)

1. The sudden outward flowing of a large amount of something.
   • 1837, L[etitia] E[lizabeth] L[andon], Ethel Churchill: Or, The Two Brides. […], volume I, London: Henry Colburn, […], →OCLC, page 195:

     Let me speak—I know I may trust your kindness; and, even if you turned into after ridicule the bitter outpouring of this moment's misery, you would but do as others, in whom I trusted, have done.

   • 2013 June 18, Simon Romero, “Protests Widen as Brazilians Chide Leaders”, in New York Times, retrieved 21 June 2013:

     The protests rank among the largest outpourings of dissent since the nation’s military dictatorship ended in 1985.

   • 2012, August 1. Owen Gibson in Guardian Unlimited, London 2012: rowers Glover and Stanning win Team GB's first gold medal

     Great Britain has collected its first gold medal of the London Games after Heather Stanning and Helen Glover won the coxless pairs with a stunning performance that will spark a mass outpouring of celebration and relief across the country.