Anilingus performed on female, accompanied by manual clitoral stimulation.

when you're hungover as shit after a spending a night drunk as a skunk

Giving a rimjob while simultaneously fingering a girl.
The female version of the rusty trombone

The equivalent of the rusty trombone when performed on a female. Consists of orally stimulating the asshole while manually stimulating the pussy, mimicking the actions of playing the melodies.