Junk video that your kids have filled up your video camera memory card with. Usually you don't realize it until the crucial moment you need the space most.
Setup: You are filming the once in a lifetime event of your wife crossing the finish line of a marathon.
You: Here she comes, almost there honey, you can do it........ What the $%#@ Out of Memory.
You then view what's on the camera only to find 100 two minute kidvids of the cat sleeping on the couch mixed with jiggle camera shots of your kids making goofy faces in extreme closeup.
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.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.