U.N.S.
U.N.S. means Unreliable Nigger Syndrome.
U.N.S. is a person who is always late or does not show up at all. You are either born with it or acquire it by being raised by other people with U.N.S.
U.N.E
Universal Noise of Eating, that looks delicious and edible I want to eat it.
Look at those brownies, U.N.E.
Or, if you are a zombie: look at those brains, U.N.E
Or, if you are a zombie: look at those brains, U.N.E