1. ACAB (A.C.A.B).
All Coppers Are Bastards / All Cops Are Bastards.
Origionally used by strikers in the UK, spread to prison inmates who often tattoo'd ACAB on themselves.

In the 70's became popular in the punk/oi scenes after the band 4-Skins used it as the title for a song.

Alternative defenitions are often used to avoid getting in trouble when quized on its mening, for example a march in germany had a banner proclaiming All Communists Are Beautiful.

2. ACAB - Anti Cuts Action Bristol, a local campaigning group fighting against austerity cuts and their root causes; capitalism and hierarchy.

3. Association of Community Access Broadcasters, a group of New Zealand community radio stations.
I'll sing you a song it won't take long, all coppers are bastards.

ACAB - Not from a bunch of white power twats, not from california.
by Always Anonomous December 22, 2010
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All Cops Are Bastards
That cop pepper sprayed those peaceful demonstrators. Man, ACAB!
by Appleicious November 23, 2011
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A: "That's a really derp cat."
B: "No, cut the crap! ACAB!"
by Herdivinity September 24, 2019
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All chunguses are big
Dummy : ACAB ! Black lives matter !
Ge,ius : huh ? what does chungus have to do with Black people ?
by JowJow__ June 9, 2020
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A word or phrase used by angry white teens when they get caught doing a 70 in a 55
Bruh he really pulled us over, ACAB for real.
by Redditor93 October 19, 2020
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All cocks are big
Girl: Size doesn’t matter ACAB

Boy: Wow i should wife her
by wumper November 5, 2020
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Stands for:
1) Apple Computers Are Bad.

2) Apple Computers Are Boring.
Guy 1: I need a new computer soon, I think I'm gonna get the new Mac Studio
Guy 2: Bruh why
Guy 1: Why not?
Guy 2: Because ACAB man! Just build a custom PC, it's a better bang for your buck and plus it just looks more cooler.
Guy 1: But I'm used to MacOS
Guy 2: I'll turn it into a hackintosh for you
Guy 1: But isn't that technically illegal?
Guy 2: Dude.... please don't make this harder than it has to be.
by UwUltimateDoge April 6, 2022
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