An 1850's term to reference 'sausages'. The 'mystery' was due to the fact that nobody but the maker of the sausages would know what was in them, and the 'bags' were the guts which contained the chopped meat.
“Hi, Butcher Barry. I'll take 6 steaks and a few Bags O’ Mystery if that's okay.”
by C L G January 31, 2021
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