Green’s Dictionary of Slang

1. (US) something rated in a class by itself.

1938

Eve. Sun (Baltimore, MD) 19 Dec. 21/4: Dracula: in a class by itself.

2. (Aus.) an unattractive woman.

1984

Partridge DSUE (8th edn) 338/1: since ca. 1950.

3. (US teen) an unpleasant, severe father, or person.

1979

D. Gram Foxes (1980) 146: Her dad doesn’t want any of us coming out there, he’s such a total Dracula.