A home gym setup, generally used by cyclists, but also popular with other disciplines. It refers to a dedicated area, generally in a basement (hence, "cave") where long, grueling exercise sessions take place.
I did a triathlon in May, which meant lots of long days in the Pain Cave, since it was too cold to train outside.
A mentally and/or physically debilitating condition worse than a hang over usually brought on by the consumption of copious amounts of alcohol combined with severe lack of sleep.
... oh my head... it's a day in the paincave for me today, thanks to that goddamn moonshine!
Cigarette: Northern slang for a cigarette, used oft by mashed up mancunian ravers becasue of the resemblance of a hot(electric)stove to the end of a lit cigarette. Originated circa 1991 in the early halcyon days of the rave culture; we speculate during a drug fuelled hallucination by said manc.
'fuck me noel, i am bolloxed, is that a ciggy in your mouth, or the stove from me 'nans kitchen'/
General use: 'Give us a stove you cunt'