skin and bones vs scrag

skin and bones and scrag both are nouns.

Word	Noun	Adjective	Verb	Adverb
skin and bones	Yes	No	No	No
scrag	Yes	No	Yes	No

As nouns, skin and bones and scrag are synonyms defined as:

Other synonyms of skin and bones include thin person.

skin and bones (noun)	scrag (noun)
a person who is unusually thin and scrawny	the lean end of a neck of veal
	lean end of the neck
	a person who is unusually thin and scrawny

skin and bones (verb)	scrag (verb)
	strangle with an iron collar
	wring the neck of