stinker vs dirty dog

stinker and dirty dog both are nouns.

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

As nouns, stinker and dirty dog are synonyms defined as:

stinker and dirty dog: a person who is deemed to be despicable or contemptible

Other synonyms of stinker include bum, crumb, git, lowlife, puke, rat, rotter, scum bag, scumbag, skunk, so-and-so, stinkpot.

stinker (noun)	dirty dog (noun)
an artifact (especially an automobile) that is defective or unsatisfactory	a person who is deemed to be despicable or contemptible
anything that gives off an offensive odor (especially a cheap cigar)
a person who is deemed to be despicable or contemptible