body waste vs piddle

body waste and piddle both are nouns.

Word	Noun	Adjective	Verb	Adverb
body waste	Yes	No	No	No
piddle	Yes	No	Yes	No

As nouns, piddle is a hyponym of body waste; that is, piddle is a word with a more specific, narrower meaning than body waste:

body waste: waste matter (as urine or sweat but especially feces) discharged from the body
piddle: liquid excretory product

body waste (noun)	piddle (noun)
waste matter (as urine or sweat but especially feces) discharged from the body	liquid excretory product

body waste (verb)	piddle (verb)
	eliminate urine
	waste time; spend one's time idly or inefficiently