plughole

(redirected from went down the plughole)
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plughole

[′pləg‚hōl]
(mining engineering)
A passageway left open while an old portion of a mine is sealed off, to help maintain normal ventilation; it is sealed when the work is finished.
A hole for an explosive charge or for a bolt.
References in periodicals archive ?
Any romantic ideas about love went down the plughole with her failed marriage to actor Andrew Leggett.
While paupers Richmond went down the plughole, Northampton - bankrolled by ambitious chairman Keith Barwell's millions - remained awash with cash and talent.
No white elephant has been kicked as hard since Norman Lamont was caught singing in his bath as the pound went down the plughole.