The act of penetrating an uncertain hole. An often risky maneuver, "Splitting the Casper" involves taking aim in the general vicinity of two known holes, where the entire area is occluded, or glazed-over, leaving neither hole fully visible. The penetrating object is then thrust at the goopy mess with the hopes of slipping comfortably into either one of two holes. Often this maneuver results in "Hitting the trailer," which is a less that desired result.

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