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British Dictionary definitions for zonk out

zonk out

verb
  1. (intr, adverb) slang to fall asleep, esp from physical exhaustion or the effects of alcohol or drugs
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

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