SQUID is the acronym for a superconducting quantum interference device. It measures very small magnetic fields and is rendered useless when wet due to its very sensitive nature. Also, used as a massive Fuck You to all those pedant bitches who think it should be "squib". I mean, just who do you think you are? A 16th century musketeer?
Mate, you've not only missed the goal you've missed the ball altogether! Sometimes I think you're as useless as a damp SQUID.
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.