Bed Hump
The act of humping your bed in order to create friction against your penis in order to achieve an orgasm.
I didn't want to touch my penis so I bed humped last night.
morning bed hump
When a man wakes up in the morning with a stiffy, and humps his bed because there's no female readily at hand to hump.
Every morning, there's never a girl next to Tundo, so he does his ritual morning bed hump before brushing his teeth.