doesn't have a (certain kind of) bone in (one's) body

doesn't have a (certain kind of) bone in (one's) body

Does not display the trait stated between "a" and "bone." (This phrase does not refer to an actual bone in the human skeleton.) I highly doubt that Jeannie started that vicious rumor about you—she doesn't have a mean bone in her body.
See also: body, bone, have, kind
Farlex Dictionary of Idioms.
See also:
  • unkind
  • have a bone on
  • bone out
  • be as dry as a bone
  • crazy bone
  • dry as a bone
  • (as) dry as a bone
  • be bone dry
  • bone dry
  • be bone idle