hind end vs excretory product

hind end and excretory product both are nouns.

Word	Noun	Adjective	Verb	Adverb
hind end	Yes	No	No	No
excretory product	Yes	No	No	No

hind end (noun)	excretory product (noun)
the fleshy part of the human body that you sit on	waste matter (as urine or sweat but especially feces) discharged from the body