A woman who seems to have a tendancy to soak up semen from all directions with no obvious limitation.

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

Often a girl or woman that loves sucking and fucking men on a regular basis. Sometimes a homosexual male can also be refered as this.

a slut who lets every guy cum in her, or she swallows every cum shot, and never says no.