Someone who enjoys such activities as feltching, cocksucking, bum sex(with other men) getting pooed/pissd on by other men, and enjoys ass-to-mouth (with other men)

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy

The worst ever stupid motherfucker office partner. You can do anything to him, like taping a banana under it's shelf and wait 2 months before he notice the smells. You can also make him loose half an hour by taping it's mouse ball and look at his restart ti's computer three times !!!