When you pour vodka into your mate's vagina and slurp it out making them cum so hard they start singing.
"I gave my girl a Dirty Sydney last night and she started singing Watermelon Sugar by Harry Styles"
"I prefer using straight vodka when giving a dirty Sydney." "Straight? No gay?"
When you extract samples from your partner during sexual intercourse to save for later to brew in your midnight stew this must take place only to summon the midnight man he has a sweet tooth for peepee but mostly poopoo only on Tuesday nights. Tuesday’s is taco Tuesday.
Person 1: I really miss midnight man!
Person 2: well.. would you like to do a dirty sydney?
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.