blue story vs jest

blue story and jest both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue story	Yes	No	No	No
jest	Yes	No	Yes	No

As nouns, jest is a hypernym of blue story; that is, jest is a word with a broader meaning than blue story:

Other hypernyms of blue story include gag, jape, joke, laugh.

blue story (noun)	jest (noun)
an indelicate joke	activity characterized by good humor
	a humorous anecdote or remark intended to provoke laughter

blue story (verb)	jest (verb)
	act in a funny or teasing way
	tell a joke; speak humorously