meat on one's bones

meat on one's bones (uncountable)

1. (idiomatic) An amount of flesh on one's body that stops one from being very skinny.
2. (by extension) An amount of mass, substance, or strength on or within something's body.

   You're dressing up as a canary? Can't you find something with a little more meat on its bones, like an eagle?

   I'd rather buy a truck than a car; I need something with more meat on its bones.

• meat on the bones