It was only in the twentieth century that the use of “bull” to mean pretentious, deceitful, jejune language became semantically attached to the male of the bovine species—or, more particularly, to the excrement therefrom. Today, it is generally, albeit erroneously, thought to have arisen as a euphemistic shortening of “bullshit,” a term that came into currency, dictionaries tell us, around 1915.
