b4nnyのようなどんな単語でも探してください。
 
1.
A grueling physical workout intended to make you a better athlete. Usually done at home or the gym, and we call that place the "pain cave."
"If I want to get faster on the bike, I've gotta do my workout, so I am headed to the pain cave."
Chumangoによって 2010年02月08日(月)
 
2.
A situation that involves either performing tasks for or working with people you do not like.
Question: "How was work today?"

Answer: "It was a total pain cave..."
Male Nurseによって 2009年06月25日(木)
 
3.
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 pain cave for me today, thanks to that goddamn moonshine!
00s4s00によって 2009年11月15日(日)
 
4.
Dark room or basement where you lure unsuspecting and intoxicated women.
Come into my pain cave so I can bludgeon you.
The Pantsmanによって 2007年05月03日(木)