dirty word vs hindquarters

dirty word and hindquarters both are nouns.

Word	Noun	Adjective	Verb	Adverb
dirty word	Yes	No	No	No
hindquarters	Yes	No	No	No

dirty word (noun)	hindquarters (noun)
an offensive or indecent word or phrase	the part of an animal that corresponds to the human buttocks
a word that is considered to be unmentionable	the fleshy part of the human body that you sit on