Five. Five dollar. Five dollar not-even-a-good-deal!!!
The B.M.T. in Subway’s Italian B.M.T. stands for Biggest, Meatiest, Tastiest (LAME name). In the early days of SUBWAY® restaurants, it was a promotion that was based on the Brooklyn Manhattan Transit system in New York City that went along with the subway theme.
Source: Lemm told me this around Halloween time, but had his facts wrong. I found the answer here, and followed the link to here.

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As a former Sandwich Artist, I can vouch for the fact that the indeed lame name, Biggest, Meatiest, Tastiest, is the true name of the BMT.
Avoid the Cold Cut Combo… it’s turkey….dyed pink.
That is disgusting.
That is disgusting… but turkey + dye is probably still more appealing then whatever bologna is supposed to be.
yeah. My trainer decided to tell me that on my first day… after I made my employee meal… which was, of course, A Cold Cut Trio.