When nasty just doesn't begin to describe something.

Got the covid-19 vaccine

when something that is so nasty that only a skank would do it/ use it

will seem to creep into your conversations now that you know what it means

combination describing someone who is not only skank but also nasty.

The word originated from a group of friends in south Georgia.
It is frequently used it to describe those who are skanktouched in their town and highschool and they do not associated with.

It's an adjective to describe somebody who looks like a revolting slut.