Dreeb is a word used in Romulan youth slang in the 2340s. It is a belittling term for a person, though it is more often used as a falsely-belittling term for the speaker's own comrades, e.g., "Come on you dreebs, get that backup running!"

Functionally equivalent to the Terran slang term dweeb. (TOS novel: Vulcan's Heart