A combination of disappointing and depressing. When you can't decide quite how bad something is, if it's depressing or just disappointing, call it both... disapressing.
Ryan: Yo volleyball sucked day, it was not fun.
Sean: That shit was disapressing.
Disappressing is an adjective. It is a combination of the words disappointing and depressing. It is used to describe something that is both disappointing and depressing at the same time.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.