The structure is a simple verb of uncertain origin, possibly from Old Norse "bosta" (to burst) or dialectal English "bust" (to break). It is used in British English, particularly in the West Midlands (especially Black Country, Birmingham, and surrounding areas), to mean to break or damage something. People typically say "I've bost the telly" or "Don't bost that, it's mine." The term originated in Black Country and West Midlands dialect, and remains a strong regional marker, famously associated with the Yam Yam accent of the area.

英語での「bost」の定義と意味

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