skin and bones

(all) skin and bones

1. Extremely thin. I know the merger has been stressful, but have you been eating? Because you're all skin and bones these days.
2. Emaciated. The children in the village were skin and bones by the time foreign aid arrived.
See also: and, bone, skin
Farlex Dictionary of Idioms.

skin and bones

Painfully thin, emaciated. This phrase often is expanded to nothing but skin and bones, as in She came home from her trip nothing but skin and bones. This hyperbolic expression-one could hardly be alive without some flesh-dates from the early 1400s.
See also: and, bone, skin
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • (all) skin and bones
  • nothing but skin and bones and skin and bones
  • nothing but skin and bones
  • skin and bone
  • be (all) skin and bone(s)
  • be skin and bone
  • a bag of bones
  • bag of bones
  • keep a cool head
  • keep a level head