Possible Clues:

• The low point of finding a diamond on the bed?
• Nadir
• The lowest
• Hard bed at such a price is heavily reduced
• Shake one's booty in place where miners were confined? The lowest of the low
• As low as you can go
• The lowest possible form of music to a Shakespearean
• What the letter K is?
• As low as you can get
• To wiggle one's hips is the nadir