A female fart. A very unpleasant human being. A fingerlicker. A human waste of precious oxygen. She was the little bitch in school that always taddled. You know who they are. Uptight, therefore nasty. Very insecure and pretentious. Essentially invisible. Don't have to look too hard to see them, but kind of hard because of their non assertive nature.
"That snit shit that just attempted conversation was a nervous nelly with a giant butt plug in her ass with no lube."