fiddle-faddle vs bunk

fiddle-faddle and bunk both are nouns.

Word	Noun	Adjective	Verb	Adverb
fiddle-faddle	Yes	No	No	No
bunk	Yes	No	Yes	No

As nouns, bunk is a hypernym of fiddle-faddle; that is, bunk is a word with a broader meaning than fiddle-faddle:

Other hypernyms of fiddle-faddle include hokum, meaninglessness, nonsense, nonsensicality.

fiddle-faddle (noun)	bunk (noun)
trivial nonsense	a bed on a ship or train; usually in tiers
	a rough bed (as at a campsite)
	beds built one above the other
	a long trough for feeding cattle
	unacceptable behavior (especially ludicrously false statements)
	a message that seems to convey no meaning

fiddle-faddle (verb)	bunk (verb)
	flee; take to one's heels; cut and run
	provide with a bunk
	avoid paying