Jib is an Irish slang term for sperm or cum. Depending on the context of a speech, it may also refer to when a person is talking shit.
Examples:
(1) You have a jib-stain on your pants.
(2) I don't like the jib coming out of your mouth Jimmy.
by Fatterry November 4, 2017
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jib....to avoid or get out of doing something.
To jib something is to duck out of doing it.
To be a jibber is to let somebody (maybe a friend) down.
To let down all your friends at the last moment is to be a jibbin git.
"He not coming to the football, he`s jibbed out"

"I bet you ten quid he`ll jib the footy"

"He never comes to the footy anymore, he`s a right jibber these days"

"He`s rung & said he`s not coming, the jibbin git!"
by Dr Fox May 8, 2007
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A jib is the front sail from large frigate ships of ancient days. You used to be able to tell what kind of ship and what nationality they where from.
by Elickzer December 30, 2004
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Starting in York, PA, the word JIB was created by college students in order to hide a nicotine device name from their RA's in their dormitories. It is a slang term that was originally used to disguise the popular device known as the "Juul". It had then starting to expand to every nicotine device also known as "Sourin", the "breeze", and other nicotine devices of that sort.
The RA's are coming! Put your jib away!
Hey, can you put my jib on the charger, but keep it hidden.
by bubzsmokes September 19, 2018
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To actively tickle the meat between someones ribs. Jibbing is very similar to the funnybone but instead of hurting it often leads to a recipient wetting themselves.
Come up behind someone and jab your fingers in between their ribs and move about quickly. At this time you are actively jibbing. They will try to run or drop to the ground but don't you let them.
by Junior Puma May 12, 2010
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When you organise and plan with someone for a reasonable period of time only for them to pull out the night before or day of with buillshit excuses.
I planned to sell my car on saturday but old mate Jibbed me
by SpoiceDandy November 5, 2019
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A weird kind of ‘pout’ also known as pulling an ugly or funny face expression. It’s normally the expression you pull when you’re confused, being sarcastic or disagree with something.
‘You’re pulling a real jib there.’
‘That’s an ugly jib.’
‘You don’t half pull some jibs!’
by AJC352 February 10, 2019
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