When a male motorcyclist hits the brakes harder or more frequently than he should in order to have his female passenger thrust her womanhood into his back. Otherwise known as a cheap thrill.
The perv motorcycle rider frequently braked harder than normal in order to have get a Boob Jam from his big breasted passenger.
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.