The fella down under

When you forgot some Australian’ name.
Originally used by Joe Biden: “I wanna thank uh, the fella down under”.

Thank you the English fella, and I wanna thank uh, the fella down under.

Baking down under

It's a polite way of saying a girl has a yeast infection in her cookie.

Sorry Cookie store is closed tonight because I'm baking down under!
Sorry honey no booty tonight because I'm baking down under :(

quigley down under

When a man cums under a woman’s fupa, and allows the cum to mature into a chud baby. Thus treating the fupa like a marsupials pouch.

Erik picked up a BBW at the bar last night and gave her the ol quigley down under

Meal Down Under

When you have a meal from down under (anally), preferrably with your partner and in the southern hemisphere

Gday Amanda, how are you doing?
Oh you know the usual, me and Frankie had a meal down under