1. weathercock - Noun
2. weathercock - Verb
A vane, or weather vane; -- so called because originally often in the figure of a cock, turning on the top of a spire with the wind, and showing its direction.
Hence, any thing or person that turns easily and frequently; one who veers with every change of current opinion; a fickle, inconstant person.
To supply with a weathercock; to serve as a weathercock for.
Source: Webster's dictionaryAs long as words a different sense will bear, And each may be his own interpreter, Our airy faith will no foundation find; The word's a weathercock for every wind. John Dryden
O jest unseen, inscrutable, invisible, As a nose on a man's face, or a weathercock on a steeple. William Shakespeare
But a priest's life is not supposed to be well-rounded it is supposed to be one-pointed -- a compass, not a weathercock. Aldous Huxley
He turns like a weathercock. Hungarian Proverb