A cool red and silverJapanese superhero from Nebula M-78, the Land of Light, who beats the everliving crud out of big rubber monsters. Since 1966, there have been some 16 spinoffs and counting.
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"
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.