giber

noun

1. One who utters gibes.

   “Come, come, you are well understood to be a perfecter / giber for the table than a necessary bencher in the / Capitol.”

   “Come Sempronia , leave him; He is a giber; and our present business Is of more serious consequence”

   “[…] here were no Gibers, Cenſurers, Backbiters, Pick-pockets, Highwaymen, Houſebreakers, Attorneys, Bawds, Buffoons, Gameſters, Politicians, Wits, ſplenetick tedious Talkers, Controvertiſts, Raviſhers, Murderers, Robbers, Virtuoſo's; […]”

   “Aloof you stand and hear the railer's gibe / While rain their shafts on me the giber-band.”