Top Definition
around mid-November to early March, when it becomes too cold to continue to run outside and you are forced to move your runs inside to a treadmill.
Oscar, the buff guy who works at the gym: Haven't seen you in a long time, mate.

Dakota: Came to hit the treadmill. It's treadmill season.

Oscar: Cheers!
by WaffleParty November 17, 2010

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