plughole

(redirected from went down the plughole)
Also found in: Dictionary, Thesaurus, Idioms.

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 ?
Owen's first-minute injury made Eriksson's selection aberration in leaving Jermain Defoe out of his squad all the more damning as Plan A went down the plughole.
TWO more precious points went down the plughole as relegation haunted Wrexham threw everything bar the kitchen sink at Wycombe.
Any romantic ideas about love went down the plughole with her failed marriage to actor Andrew Leggett.