The thick creamy substance that explodes out of the head of the male organ, also called the penis, and into the mouth of another human species. It has the flavor of the great sandwich filling "mayonaise" or "Miracle Whip" which ever is prefered.

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