(as) dry as a bone

:  free or relatively free from a liquid and especially water

:  not being in or under water

:  lacking precipitation or humidity

:  to make dry (see ¹dry)

:  to become dry

:  the condition of being dry (see ¹dry) :  dryness

:  something dry

:  a dry place

:  one of the hard parts of the skeleton of a vertebrate

:  any of various hard animal substances or structures (such as baleen or ivory) akin to or resembling bone

:  the hard largely calcareous connective tissue of which the adult skeleton of most vertebrates is chiefly composed

:  to remove the bones from

:  to provide (a garment) with stays

:  to rub (something, such as a boot or a baseball bat) with something hard (such as a piece of bone) in order to smooth the surface

:  extremely, very

:  totally