Like a French Kiss only its Down Under with a mouthful of mints
I bought some mints and gave your gf an Australian Mint Kiss
The act of gaping your partners anus, then shooting tic tacs in the open hole like basketball while yelling, "From down unda!".
I gave my girl the ol Australian Breath Mint last night.
The Australian Mint put out a tourism brochure which read "Visit the Royal Australian Mint? It just makes cents". Since this amazing pun was released, cool kids now describe something that makes sense as 'Australian Mint' .
"Yep, that idea is Australian mint"