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1.) An insanely bad-ass long run that tests the mental toughness of the world's finest athletes; A supreme test for athletic prowess
2.) the hardest thing a human can do
3.) a run longer than 26.2 miles, although most "ultras" are 50 miles, 100 miles or 100+ miles
"He ran an ultramarathon, you've only climbed Mt. Everest once"

"There are more Harvard Phd's than Ultramarathoners"
by xtremerunner88 October 13, 2009
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Jan 18 Word of the Day
1. Blue Monday is the most depressing day of the year, calculated by Dr. Cliff Arnall, a researcher at the University of Cardiff's Center for Lifelong Learning.
Factors used to calculate the date included weather conditions, debt level, time since Christmas, time since failing our New Year's resolutions, low motivation and feeling the need to take action.

In 2005 the date was calculated as January 24th, in 2006 it was January 23rd, and in 2007 it was January 22nd.

2. A song by the hard rock band Orgy from their album Candy Ass.
1. Guy: "Aw man, I feel like absolute shit today."
Friend: "Yeah, same here. I hate Blue Monday."

2. "I wish I could sing Blue Monday to my ex-girlfriend, she's such a bitch."
by L_Roku August 31, 2007
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2
1.) An insanely bad-ass long run that tests the mental toughness of the world's finest athletes; A supreme test for athletic prowess
2.) the hardest thing a human can do
3.) a run longer than 26.2 miles, although most "ultras" are 50 miles, 100 miles or 100+ miles
"He ran an ultramarathon, you've only climbed Mt. Everest once"

"There are more Harvard Phd's than Ultramarathoners"
by xtremerunner88 October 13, 2009
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Get a Ultramarathon mug for your barber Callisto.
3
1. More than a marathon usually on trails.
2. Running longer than everyone else in the world thinks possible.
Hey want to go get some breakfast?

No im going for a 10 hour ultra marathon... dinner?

screw you
by jaketherunner January 05, 2012
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