That very iconic classical waltz tune you hear in many movies and cartoon shows (aka the theme from 2001: space odyssey). Very comedic when you juxtapose it with a chaotic situation.
Uh oh, looks like the neighbor's are fighting again. Alexa, playBlue Danube.
"Surreptitiously" scratching your balls by pinching your crotch in front of your pants. When you do so inside your pocket, it is known as "Blue Danubing Mezzo-Piano." Named after the waltz composed by Johann Strauss.
While having a conversation with someone, he began Blue Danubing by very obviously pinching his crotch. I swear I'm going to get that guy some jock itch cream as a graduation present.
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.