throw away vs fling

throw away is not a noun while fling is a noun.

Word	Noun	Adjective	Verb	Adverb
throw away	No	No	Yes	No
fling	Yes	No	Yes	No

As verbs, throw away and fling are synonyms defined as:

throw away (noun)	fling (noun)
	a brief indulgence of your impulses
	a usually brief attempt
	the act of flinging

throw away (verb)	fling (verb)
to remove	throw with force or recklessness
throw or cast away	move in an abrupt or headlong manner
	indulge oneself
	throw or cast away