(British, Ireland) Diesel fuel that has been dyed green to indicate that it is only permitted to be used off-road due to lower road taxes.
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UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.
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(British) Environmentally friendly diesel fuel.
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