when you are fucking a girl and you look up at the clock and start pounding hard as to quickly cum because your late for class/work

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

It's a buzz a cocksucker gets after swallowing a load of cum, esp. a big load or several in a row. Attributed to the testosterone level in the cum, varies per load and/or dude getting blown. Some cocksuckers become addicted to the feeling.