Two Asian girls doing 69 but it’s flipped to a Ying Yang.

Vagina. aka female reproductive organ.

When two people lay on a horizontal surface on their side and fist each other at the same time.

When a black person and a white person 69.

Popularized by Madalynn Newton , The term “Ying Yang” is used to describe a situation that one does not care about, also can mean “It’s whatever”

In order to "Get on the ying yangs" one must injest two different types of Heroin, ideally chinese white and black tar, hence the Ying and Yang. This enduces a powerful buzz that could satiate even the most starved fiend.