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 ?
We want to be the authority in plugholes," said Hamilton.
And when it turns out that Jez's estranged wife Nancy is working there as well, he applies for a job fishing the hair out of the changing room plugholes just to be near her - hoping to win her back with the sheer force of his odious personality.
PLUGHOLES in the bathroom can quickly fill up with the residue of shampoo and bath oil.
Visiting pupils, from an unnamed school, stuffed guide books down the U-bends of lavatories and sink plugholes before turning on the water.
They've managed without it for long enough and frankly that's about all they've had going for them: Whatever else we've chucked at them, at least mice have never had to put up with with bad hair days, blocked plugholes and David Ginola shampoo adverts.
A third of people are put off by nasty smells while others complain of hair in plugholes, dirty toilets, lingerie hanging on radiators, cobwebs in cupboards or a death in the house.