excretory product vs tail end

excretory product and tail end both are nouns.

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

excretory product (noun)	tail end (noun)
waste matter (as urine or sweat but especially feces) discharged from the body	the fleshy part of the human body that you sit on
	any projection that resembles the tail of an animal
	the time of the last part of something