humbug vs twaddle

humbug and twaddle both are nouns.

Word	Noun	Adjective	Verb	Adverb
humbug	Yes	No	Yes	No
twaddle	Yes	No	Yes	No

As nouns, humbug and twaddle are synonyms defined as:

Other synonyms of humbug include baloney, bilgewater, boloney, bosh, drool, taradiddle, tarradiddle, tommyrot, tosh.

humbug (noun)	twaddle (noun)
something intended to deceive; deliberate trickery intended to gain an advantage	pretentious or silly talk or writing
pretentious or silly talk or writing
communication (written or spoken) intended to deceive

humbug (verb)	twaddle (verb)
trick or deceive	speak (about unimportant matters) rapidly and incessantly