Noun: An erection that is wasted or not put to use; Wood that never finds its port and is thus worn away/beaten and eventually gives up.
When Rhiana, the neighbor, asked if I wanted to "watch a movie" I thought for sure we'd get down. To my chagrin, we literally watched a movie while my driftwood bobbed in vain on a hopeless, lonely, sea.
Driftwood Vagina is a condition when a case of Splinter Pussy goes untreated for a length of time. Symptoms include; moldy smell, moss, and termites. People who suffer from Driftwood Vagina would often continue to leave their condition uncured as they were a dumb bitch to get Splinter Pussy in the first place.