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British Dictionary definitions for sixty-four thousand dollar question

sixty-four thousand dollar question

noun
  1. a crucial question or issue

Word Origin

C20: an elaboration of the earlier sixty-four dollar question, so called from the top prize on the US radio show Take It or Leave It (1941–48)
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