(British) A short-duration outing by coach to a destination that is not revealed in advance.
I recall, Anderson went on, the fine story of a Welsh mystery tour by bus from Cwmrhydyceirw in my constituency.
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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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