Shady way to say daaymn. It is an expression commonly used before an insulting sentence. It is also used when a male/female is being thirsty. It is a shady sass way to give attitude.

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