Reply to post:

'[n]ot to mention my mum's name [of 'glory hole'] for the cupboard under the stairs - such is language."

Then again, your mum might be pulling your leg, i.e., saying something "unintentionally naughty" to cause you brain irritation or some other distress. In any case, a good son would giggle a few times, then recommend to mum that she use "hidey hole" from then on. (Feel free to Britainize it by sprinkling in a completely unnecessary letter "u" or maybe an "ae," e.g., "hydae houle.")

You're welcome.