A Jackism is a word or turn of phrase used by Colonel Jack O'Neill int the television series 'Stargate: SG-1'. Common Jackisms are listed below, but there are others.
Jackisms:

'Ya think?'

'Good morning campers.'

'For crying out loud...'
by Silentiea October 10, 2006
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Hilarious, and sometimes nonsensical phrases uttered by the fictional character Jack Sparrow, from the Pirates of The Caribbean movies.
Jackisms:
1. "The only rules that really matter are these: what a man can do and what a man can't do."

2. "She's safe, just like I promised. She's all set to marry Norrington, just like she promised. And you get to die for her, just like you promised. So we're all men of our word really... except for, of course, Elizabeth, who is in fact, a woman."

3. "I think we've all arrived at a very special place. Spiritually, ecumenically, grammatically."

4. "Me? I'm dishonest, and a dishonest man you can always trust to be dishonest. Honestly. It's the honest ones you want to watch out for, because you can never predict when they're going to do something incredibly stupid."
by Paradox* August 27, 2006
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"omg I saw him jerking off near the subway: such jackism!"
by guedgued February 28, 2021
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A religious cult, centered on the worship (and/or drinking) of Jack Daniels, both the drink as well as the man. (assumed deceased.)
Man 1: Dude, thats your 3rd bottle of jack today!

Man 2: What do you expect from a believer in Jackism?
by FroogleApollo April 3, 2009
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To be a Jack-Ass to everybody and when anybody ever talks to or asks him anything he is a smart ass/ jackass
Damn bro you supporting Jackism now
by EggnogBoi16 April 20, 2023
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Something which makes Jack unique, generally an action which he uses or performs
Being incapable of not looking at a person's breasts is a form of "Jackism"
by Darlo123 November 22, 2020
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Something that makes Jack unique, generally an action only he uses or performs.
Being incapable of not looking at any person's breasts is a form of "Jackism"
by Darlo123 November 22, 2020
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