snake oil vs humbug

snake oil and humbug both are nouns.

Word	Noun	Adjective	Verb	Adverb
snake oil	Yes	No	No	No
humbug	Yes	No	Yes	No

As nouns, snake oil and humbug are synonyms defined as:

snake oil and humbug: communication (written or spoken) intended to deceive

snake oil (noun)	humbug (noun)
communication (written or spoken) intended to deceive	something intended to deceive; deliberate trickery intended to gain an advantage
(medicine) any of various liquids sold as medicine (as by a travelling medicine show) but medically worthless	pretentious or silly talk or writing
	communication (written or spoken) intended to deceive

snake oil (verb)	humbug (verb)
	trick or deceive