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17.
A race attempted by a loarge assortment of idiots who lack the coordination or ability to use the basic skill of running in a real sport. Instead they decide to run for hours on end for no apparent reason. Marathons are oftenly described as "fun" by these morons for reasons unknown to the sane part of society. These retards also enjoy the loss of the ability to walk, run, move, fuck, for the 2 days following the Marathon.
Bob: "I'm running the boston Marathon "Jim"
Jim: "How long is it Bob"
Bob: "40 miles"
Jim: "Your a retard Jim"
by Austin Kennedy July 19, 2006
 
1.
An act, such as a running race or sex, engaged in for a very long time, i.e. at least several hours.
He's been in his room watching the Andy Griffith Show marathon; he ain't comin' out.
by LudwigVan November 13, 2003
 
2.
The greatest game ever.
Marathon is such an awesome game.
by John Smith April 16, 2004
 
3.
A marathon is when you masturbate numerous times, till one passes out.
I heard Jimmy did a marathon before school today.
by Zorlock April 20, 2005
 
4.
to watch an entire season of a TV series in a short period of time, especially if you watch them in one sitting.
I just got the last season of Lost on DVD, and I had to marathon it last weekend. I couldn't put it down.
by Philosophistry January 31, 2009
 
5.
A footrace of 42.195 kilometres, which is usually held on roads. It's featured at the Olympics and the World Track and Field Championships. The race was borne out of the death of Greek army messenger Pheidippides, who ran from village of Marathon to Athens to inform the Athenians of the Greek's victory over the Persian army. Pheidippides died upon delivering the message.
"Haile Gebrselassie clocked a world record 2 hours, 4 minutes, and 36 seconds at the Berlin Marathon."
by Alex26 December 03, 2007
 
6.
YOUR GIRLFRIEND/WIFE AND YOU WILL MAKE LOVE 26.22 TIMES IN ONE NIGHT. THAT’S ROUGHLY 3.3 TIMES PER HOUR, FOR 8-HOURS… THAT WAY, IF YOU GO TO BED AT 10 PM, YOU CAN FINISH AND YET STILL GET ENOUGH SLEEP TO BE PRODUCTIVE THE NEXT-DAY (PREFERABLY A SATURDAY OR SUNDAY). HOORAY! HOWEVER, YOU'RE GOING TO NEED A MINI-FRIDGE, TWO-PLASTIC GLASSES, FOUR-ENERGY DRINKS, SIX-BOTTLED WATERS, THREE-GALLONS OF ORANGE JUICE, 10-MINI BOTTLES OF KY (SUFFICIENT LUBE), AND 2-3 SUB-PAR MOVIES; BECAUSE IF THEY PROVE TOO INTERESTING, YOU AND/OR YOUR LOVER COULD POSSIBLY GET SIDE-TRACKED, COSTING YOU PRECIOUS TIME. THIS TIME SHALL BE CALLED, “MARATHON”.
"Tina and I will hopefully entertain thoughts of "Marathon" tonight. I accidentally left my seeing glasses at the office during lunch and ingested 4-Viagra pills by mistake. Things aren't looking good down below. So I figure I will mention it at dinner and see how she takes to the idea."
by Tolan Lichty February 08, 2009
 
7.
When you drink 26 beers in a short amount of time, without throwing up.
bro 1: "Bro, I'm going on a marathon tonight."

bro 2: "That's crazy bro, I hope you're prepared for that shit bro."

bro 1: "I was born ready. Bro."
by in.da.sky January 25, 2011