cock-and-bull story vs song and dance

cock-and-bull story and song and dance both are nouns.

Word	Noun	Adjective	Verb	Adverb
cock-and-bull story	Yes	No	No	No
song and dance	Yes	No	No	No

As nouns, cock-and-bull story and song and dance are synonyms defined as:

cock-and-bull story and song and dance: an interesting but highly implausible story; often told as an excuse

Other synonyms of cock-and-bull story include fairy story, fairy tale, fairytale.

cock-and-bull story (noun)	song and dance (noun)
an interesting but highly implausible story; often told as an excuse	theatrical performance combining singing and dancing
	an interesting but highly implausible story; often told as an excuse