1 definition by NewYorkCity11

A bus that crosses through 79th street in Manhattan New York. Often filled with many students from multiple schools. Not only acts as a form of transportation, but a social event on weekdays.
"Yo Did I see you on the M79 this morning?"
"Oh my god! I didn't know you were an M79er"
by NewYorkCity11 January 30, 2008
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