Seems like they share a root: cack (slang) faeces (feces); nonsense or rubbish: "what a load of cack" could equally be used to describe someone talking nonsens

Seems like they share a root: cack (slang) faeces (feces); nonsense or rubbish: "what a load of cack" could equally be used to describe someone talking nonsense or as a criticism of something of poor quality. Also spelt "kak" as used in Afrikaans and Dutch. Derived from an ancient Indo-European word, kakkos, cognate with German word Kacke, Welsh word "cach" and the Irish and Scottish Gaelic word "cac" which all mean 'shit'. https://en.m.wikipedia.org/wiki/Glossary_of_British_terms_not_widely_used_in_the_United_States#:~:text=(slang)%20faeces%20(feces)%3B,used%20in%20Afrikaans%20and%20Dutch https://en.m.wikipedia.org/wiki/Glossary_of_British_terms_no....