the process of in which you put your penis in a womans nose and it hits her brain and you ejaculate on her eyes and she will probably have at least a concusion

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