What is Manches?
1.
Another word for mansechs.
Rage3d = teh manches
2.
A colloquial term on the internet meaning "mansex" or homosexual male sexual relations. It comes from the term "mansechs", which was (is) a popular way of spelling "mansex" on many internet forums and that bastion of the linguistically adept, IRC.
Him? Oh, he doesn't like women anymore. He has given in to the dark force that is teh manches.