The act of not only achieving friend-zone status with a desirable female, but completely overshooting the friend-zone right into the Father-zone.

This is due to extreme White-Knighting.

Especially common if said female has severe daddy-issues.

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 zone further out than the brother zone