panjandrum

An important or self-important person.

An imaginary personage of much power or pretension; a burlesque potentate, plenipotentiary, or Great Mogul.

An important, powerful or influential person.

A self-important or pretentious person.

A massive, rocket-propelled, explosive-laden cart designed by the British military during World War II.

an important or influential (and often overbearing) person