slang vs piece of tail

slang and piece of tail both are nouns.

Word	Noun	Adjective	Verb	Adverb
slang	Yes	No	Yes	No
piece of tail	Yes	No	No	No

slang (noun)	piece of tail (noun)
a characteristic language of a particular group (as among thieves)	slang for sexual intercourse
informal language consisting of words and expressions that are not considered appropriate for formal occasions; often vituperative or vulgar