The act of two men having butt sex.
Person 1: Hey bud what happened to you last night?

Person 2: I met this amazing guy and we went back to his place and had Mantercourse.
by JBordo24 October 21, 2010
Top Definition
The act of intercourse between two or more men.
Stephen and Todd had violent mantercourse on your couch last night. I probably won't sit there anymore.
by ktrane May 10, 2006
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