musty bitch Posted in M Best definition musty bitch A skanky female, ages teen to death. They annoy the hell out of you but most of all are gross, stanky, or just fat. That musty bitch just got fingerprints all over my iPad How satisfied are you with the definition? Looking for musty bitch meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 42 times.