private parts vs excretory product

private parts and excretory product both are nouns.

Word	Noun	Adjective	Verb	Adverb
private parts	Yes	No	No	No
excretory product	Yes	No	No	No

private parts (noun)	excretory product (noun)
external sex organ	waste matter (as urine or sweat but especially feces) discharged from the body