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jib 1

1. Nautical A triangular headsail set with its luff fastened to a stay rising from the bow, bowsprit, or jib boom.
a. The arm of a mechanical crane.
b. The boom of a derrick.

[Origin unknown.]

jib 2

intr.v. jibbed, jib·bing, jibs
1. To stop short and turn restively from side to side; balk.
2. To perform tricks by jumping onto and maneuvering over fixed obstacles such as railings or platforms. Used especially of snowboarders and skiers.

[Origin unknown.]

jib′ber n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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9.02 (435m): Fogarty, Bluereef Mermaid, Inniskeen Bolt, Mohane Mai, Jibber Rackard (M), Geelo Pearl (M).
Cider of the festival: Hurst View - Jibber Jabber The 45th edition of the festival is being planned to take place in July 2020.
There are coins and seals and lots of jibber jabber about High Table manners and then "Game of Thrones" star Jerome Flynn shows up as a Bronn-like business type who's a bit too greedy for his own good (it's hard to tell what accent Flynn is doing here, but he's most definitely doing it).
Winger Kennedy is fed up with Watt's jibber jabber on the way into training every morning but if he remains fluent in goals he reckons a cap call could be coming.
Now mother never bred a jibber, so I watch someone called Rita Ora, who looks suspiciously like a draughty draughtboard.
Big networks do have some good quality presenters/RJs but, down the line, the listener is tormented by the senseless and directionless jibber jabber of the presenters.
The Grotto is also said to be haunted, as a smuggler nicknamed John the Jibber was lowered down the lift shaft in a bucket and left to starve to death.
John the Jibber, reputedly murdered by fellow criminals after selling information to HM Customs, was left to starve in a barrel in nearby Smugglers Cave, with his cries heard ever since.
ISCANNED the gleaming hand pumps, proudly sporting the badges of powerful brews such as Merry Mount, Scottish Maiden and Jibber Jabber.
James 'Jibber Jabber' Kidd won KO v 'Sugar' Jay Robinson 11.