bungle vs fluff

bungle and fluff both are nouns.

Word	Noun	Adjective	Verb	Adverb
bungle	Yes	No	Yes	No
fluff	Yes	No	Yes	No

As nouns, fluff is a hyponym of bungle; that is, fluff is a word with a more specific, narrower meaning than bungle:

As verbs, bungle and fluff are synonyms defined as:

bungle (noun)	fluff (noun)
an embarrassing mistake	a blunder (especially an actor's forgetting the lines)
	something of little value or significance
	any light downy material

bungle (verb)	fluff (verb)
spoil by behaving clumsily or foolishly	ruffle (one's hair) by combing the ends towards the scalp, for a full effect
make a mess of, destroy or ruin	erect or fluff up
	make a mess of, destroy or ruin