In Appalachia it's common to hear someone describe themselves or others as being limber as a dishrag or limp as a dishrag. The saying could mean anything from being weak due to sickness or being limber from hitting the bottle a little too much.
Another saying that comes to mind regarding dishrags: if you drop the dishrag it means someone is coming. And some folks even say if you drop the dishrag your sweetheart will appear. Then again, if you sleep with a dishrag under your pillow-you might just get married in the next year. Or if you're suffering from warts and you're really sneaky-steal your neighbors dirty dishrag and bury it somewhere and your warts will disappear.
Most folks have no clue the lowly dishrag holds such great importance in Appalachia.