Naut. [f. JIB sb.1 + BOOM sb.2] A spar run out from the end of the bowsprit, to which the tack of the jib is lashed, and beyond which is sometimes extended the flying jib-boom.
1748. Anson’s Voy., II. ix. 226. One of the sail-makers mates was fishing from the end of the gib-boom.
1752. Chambers, Cycl., s.v. Ship (Plate), Flying Jibbboom [no simple jib-boom shown].
1769. Falconer, Dict. Marine (1776), Jib-Boom,… This boom … is nothing more than a continuation of the bowsprit forward, to which it may be considered as a top-mast.
1833. Marryat, P. Simple, xxxv. To prepare for action, and keep close order, which means, to have your flying jib-boom in at the starn windows of the ship a head of you.
1878. Masque of Poets, 55. Out on the jibboom in a gale He went in the darkness to furl a sail.
