not have a (some kind of) bone in (one's) body

not have a (some kind of) bone in (one's) body

To be completely without a certain characteristic or to never show a particular emotion. Oh, come on, you think Jeff stole the money? There's not a deceitful bone in his body! There's no way that mean old widow gave so much money to the hospital—there wasn't a generous bone in her body.
See also: body, bone, have, kind, not
Farlex Dictionary of Idioms.
See also:
  • not know the meaning of the word
  • prove (to be) (something)
  • prove to be
  • neither fish nor flesh
  • neither fish nor fowl
  • neither fish, flesh, nor fowl
  • there was/is something about (someone or something)
  • there's something about (someone or something)
  • there's something about somebody/something
  • number