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kogal

British  
/ ˈkəʊɡæl /

noun

  1. informal  (in Japan) a teenage girl or young woman noted for her busy social life and her purchase of expensive designer clothes and accessories and the latest electronic gadgets

"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 kogal

C20: possibly from Japanese ko small, child + gal 1