1 definition by EricWelthorpe

ACAB, or A.C.A.B. = All Coppers Are Bastards.

Originated way before the punk & Oi appropriation of the abbreviation. References to it go back to the 1940s in the UK. Often as a tattoo on those who've had unpleasant dealings with the British police.
ACAB tattoo across the hands/fingers/knuckles.

Occasionally seen as tattoo on the forehead during the punk/Oi era.
by EricWelthorpe April 12, 2008

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