The act of staying awake for an unusually long stretch of time. It generally becomes a life marathon after you've been awake for a full 24 hours.
Sorry if I'm a little spacey, I'm in hour 30 of a life marathon right now.

I have work, 2 papers due, and a wedding to go to. I'm going to have to pull a life marathon.
by sangreazul December 21, 2010
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an event where you need to wake up at freezing o'clock in the morning just to run for miles, skipping your daily habit of eating cupcakes and your favorite TV series.

see also: masochism
Join the marathon, they said. It will be fun, they said.
by Steve Yotes Jr December 13, 2016
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As in a herd of cattle, a pride of lions, or a murder of crows, a "marathon" is the collective for meetings, as in "a marathon of meetings".
Between putting this definition into Urban Dictionary and my marathon of meetings, don't expect me to get any actual work done today.
by dlairman August 22, 2023
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Running 105 laps of the local quarter mile track. Possibly the least pleasant way to spend an afternoon.
I'll bet a NASCAR marathon on this - if the Patriots lose, I'll run a hundred and five laps, if they win, you have to
by searscadillac February 23, 2011
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The act of going to mormon.org and trolling ONE missionary for an entire 3 hours without them leaving
Bill: Hey man, you wanna study for that math test?

Killroy: Forget the test! Tonight, I'm gunna beat the Three Hour Mormon Power Marathon.
by duplicitycommon May 30, 2011
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When a person with almost no training runs a full marathon. The first to document this run was Bert Kreischer, who has what's know among scientists as the Mickey Mantle Gene.
Jake woke up today and decided to run a Mickey Mantle Marathon. Those 26miles almost killed him.
by Trashedcatt October 22, 2019
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a date that lasts longer than normal, maybe 2 or 3 days... Usually involving a lot of long lasting tantra sex.
Yo John, what time did you drop off Jane after your date?

"Nah, man. I didn't drop her off. She stayed for 3 days we were marathon dating!"
by southbronxems August 5, 2007
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