poop vs low-down

poop and low-down both are nouns.

Word	Noun	Adjective	Verb	Adverb
poop	Yes	No	No	No
low-down	Yes	Yes	No	No

As nouns, poop and low-down are synonyms defined as:

Other synonyms of poop include dope, the skinny.

poop (noun)	low-down (noun)
the rear part of a ship	slang terms for inside information
slang terms for inside information
a stupid foolish person
obscene terms for feces

poop (adjective)	low-down (adjective)
	of the most contemptible kind
	(of jazz) having the soulful feeling of early blues