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Parnell shout

British  

noun

  1. informal a social occasion where each person in a group pays for his or her own entertainment or meal

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Parnell shout

from Parnell , suburb of Auckland, where very independent people on low incomes were supposed to live