Meaning

noun an aggressive remark directed at a person like a missile and intended to have a telling effect

verb be compatible, similar or consistent; coincide in their characteristics

verb shift from one side of the ship to the other

originUncertain; possibly from Old French giber (“to engage in horseplay; to play roughly in sport”). Compare English jib (“usually of a horse: to stop and refuse to go forward”), Old Norse geipa (“to talk nonsense”). The noun is derived from the verb.

Etymology from Wiktionary, CC BY-SA 3.0