When two or more men hang out so much that they have to shit at the same time.
I have to shit too, we must man cycling.
by victormonopoly December 17, 2011
When a man is so robbed of nutrients that he resorts to ejaculating in his own mouth, for the little value it has.
"Oh man, I was watching the discovery channel and some guy was mancycling because our aid didn't get there soon enough"
by The one and only, Olgiz. January 22, 2010

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