(idiomatic) Someone who appears to be without special status, but who has great covert influence on a person in authority.

(idiomatic) Showing characteristics of the past; present in one's work after later advances in the field; coming later than could be generally accepted.

Alternative spelling of behind the eight-ball

Alternative spelling of behind the eight-ball

Alternative spelling of wet behind the ears

Alternative form of wet behind the ears

(idiomatic) Seasoned or experienced; mature, especially with respect to judgment.

plural of power behind the throne

plural of power behind the throne

(transitive) To organize behind a leader or a principle.