(UK) Coffee mixed with chicory.
Also the first-named component has to be in excess of a given percentage (e.g. in the UK so-called French coffee has to contain at least 51% roasted coffee, the remainder being roasted chicory).
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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