The process by which a female descends along a male shaft for long hours of hard labour. The process often occurs in darkness and can bring sweat to the skin.
On several occasions in the 19th century females were described as mining so much that a baby boom was in full flow. At the end of the 20th century it became legal to mine without a hard hat. Some often describe the process as a slag tipping it, noticeable figures that would mine up to 10 shafts a night and soon became encompassed with the catchphrase 'Mining? Whatcha say?'
Corrr Jenny, the way she does her mining, shes the Maggie Thatcher anti-christ.