A cacker can be considered another word for chav. Being New Forest born and bred, the word cacker is used to describe people who could be considered scum, low-life, or simply a gypo. My parents (also from Hampshire/the New Forest area) also used the word cacker many moons ago.
Look at the cacker.
What a cacker.
I've just been to the supermarket, and my god it was full of cackers!
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