jacks

A derogatory term which people from Cardiff use to describe people from Swansea, in South Wales. Etymology: stems from "Swansea Jack" a dog who assited in the saving of several dozens of persons from various drowning situations by barking loudly from the beach/docks and thus drawing the attention of passers-by who were able to really help.
Cardiff supporter: "Fuck me, I can't believe those soddin' Jacks are back in the Championship!"

Graffitti in toilet of The Woodville pub in Cardiff "Kill all Jacks!"
by Mr Snail April 17, 2008
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Jack

Jack is one of the hottest boys you'll ever meet, he's smart and has the best personality, although he might come off as a bad boy, he is so funny and amazing and I'm so lucky to have him in my life.
Friend: wow! Who's that

Me: oh that's jack, I'm so glad to have him in my life

Friend: aw you're so lucky
by Bandsforever October 06, 2015
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Jack

A 100% undesireable douchebag that will break your heart. Never trustworthy. Always looking for another girl to cheat on you with. Lies a lot. Criticizes you to no end.
by mylifesucks123 December 01, 2011
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Jack

Jacks usually have feelings for a person but they are too shy to tell them. The people they like probably like somebody else but they don't care. He is smart, funny, awesome, handsome, and doesn't care about what other people say about him. If you know a Jack you are one lucky person to be his friend! :)
Person 2. I thought you were sad
Person 2. I was just talking to a Jack
by NotMr.Phantom March 11, 2019
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Jack

Bryce watches porn everyday. He's such a Jack!
by africanamerica December 12, 2016
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Jack

Typically a name for a trans kid that renamed themself from racheal or something....

Uh.... so yeah
Jack just got his... or... hers... ummm... THEIR testicles removed.
by Epic_Definer December 06, 2019
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Jack

An amazing, extremely attractive guy with a wonderful personality. He keeps to himself, but even so is constantly hit on by girls lusting for his good looks. Even though he's kind of a loner, he will always be there for his friends and those he loves. He loves the color black and Japanese rock music, as well as anime and video games. He's a wonderful nerd who any girl would be super lucky to have.
"Wow, you see that guy over there? He's a real looker."
"Excuse me?"
"That guy standing there all alone in black. I usually don't go for that type, but god, that Jack is hot!"
"That's my fiancé you're talking about."
". . . You're the luckiest girl in the world."
by Jack Skellington's Lover October 22, 2013
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