dirty dog vs disparagement

dirty dog and disparagement both are nouns.

Word	Noun	Adjective	Verb	Adverb
dirty dog	Yes	No	No	No
disparagement	Yes	No	No	No

dirty dog (noun)	disparagement (noun)
a person who is deemed to be despicable or contemptible	the act of speaking contemptuously of
	a communication that belittles somebody or something