A
muffin that does not contain (throughout its inner
cake) any of the ingredients displayed on the top of the
muffin. Term can be applied to people in an organisation who appear to do work but who achieve little.
You buy what looks like a delicious fruit stuffed
muffin but find that inside it is all
cake and no fruit. It looks good but delivers nothing. It’s not a
muffin, it’s a nuffin.