I'd like to know how to use the idiom: Super Duper.
It seems to be a slang which means great or marvelous. http://www.thefreedictionary.com/superduper
But, one of my colleagues sometimes says "I'm super duper busy today!" She is a non-native English speaker.
Is that usage also correct?
I also want to know the nuance of this idiom. Is it appropriate to use in a business setting?
Best Answer
Super duper is a rhyming reduplication of "super". The expression is informal and somewhat dated (usage attested from the '40s):
Super-duper:
(old-fashioned, informal)
Super is also an adverb:.