carbuncle

Mr Venturi's design was chosen following the cancellation of a proposed extension to the National Gallery, famously derided as a "monstrous carbuncle" on Trafalgar Square by Prince Charles.

Watching Donald Trump speak is like watching a festering carbuncle explode in a spray of pus and blood.

He disdained a proposed addition to London’s National Gallery as “a monstrous carbuncle on the face of a much-loved and elegant friend.”

The drama, in their view, is nothing less than a monstrous carbuncle on the face of British society.

The plan, included a modern-looking curved glass courtyard, was, according to Charles, “a monstrous carbuncle on the face of a much-loved and elegant friend.”