A woman dating man after man without a break in between.
That girl just dumped me for another guy, she is doing a manathon.
by -xRobyn Banks February 18, 2009
Two or more guys who spend a huge amount of time together without any women present.
Edward and Gerald ditched their wives for the weekend and went for a manathon of fishing and drinking.
by Leonard Loughborough September 27, 2010