Marathoning

Hey,anybody here know what is meant by ''marathoning''?According to the Urban Dictionary,it means watching an entire season of a TV series in a short period of time, especially if you are watching it in one sitting.I think I'm this kind of person because I kind of like to watching dramas or series.I'll watching them non-stop for more than 10 HOURS if I got the DVD s.One of the things which I always do in my spare time is watching the latest drama online late at night.So, isn't this mean I'm a ''marathoner''?