When you hitch a ride home from school or work on your friends bike but their bike doesn't have a rack/carrier, so you have to sit directly on the back wheel and use your ass cheeks as brakes.
When you hitch a ride from work or school on your friends bike but their bike doesn't have a rack/carrier. So you have to sit directly on the spinning back wheel, using your ass cheeks as brakes.
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.