The act of pouring 563 grams baking soda in your ass then adding a whole bottle of vinegar so you can feel the sensation of bubbles in your ass, this is all for sexual pleasure
e.g. "That frightful barmaid has given me a short measure. I'd really rather like it allsoped, but she looks a bit pre-menstrual to me so maybe I won't add to her troubles on this occasion. But if she does it again I'll give her a jolly good Gorton - and then nick her wheels."
Originally the name of a mousepad company, the name has later become adopted by a well-known unknown person. This well-known unknown person is known to not be known by most knowing people. Knowing is knowing not knowing, know what I mean?
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.