Hungarian cinch

Hungarian cinch (plural Hungarian cinches)

1. (slang, dated) A sure thing; a certainty.
   • 1970, Journal of the House of Representatives‎^[1]:

     our great State numbers among its residents, Minnesota Fats; and that it is a Hungarian cinch that these words of praise will embarrass Minnesota Fats

   • 1976, Bill Pronzini, Byrne's Book of Great Pool Stories‎^[2]:

     for if I ever encounter an absolute Hungarian Cinch in my long and illustrious career, this is it