“Broadside (noun): A verbal attack or denunciation, especially in a publication; adverse critique; tirade.
‘Constantine Curran, who was now editing St. Stephen’s, the University College magazine, asked Joyce to send him something he could not market elsewhere, but was staggered when Joyce disingenuously submitted a new and scabrous broadside, “The Holy Office.”’ Richard Ellman, James Joyce”
Excerpted from: Grambs, David. The Random House Dictionary for Writers and Readers. New York: Random House, 1990.