whatever
adjective
°(colloquial) Unexceptional or unimportant; blah.
°No matter which; for any.
interjection
°(colloquial dismissive) A holophrastic expression used discourteously to indicate that the speaker does not consider the matter worthy of further discussion.
noun
°Anything; used to indicate that the speaker does not care about options.
"I'll do whatever I can."
synonyms: so what, whoopee do