A negative description of appearance, usually in reference to a female's poor state of hair, makeup, or dress; most often said of oneself, not so much directed at someone else; a hot mess.
Friend: "Come on, let's go to Dollar General."
Me: "I can't believe I'm goin up in tha Dolla Gentral lookin like hoo slung mung!"
Boyfriend: "You look fine without makeup."
Me: "Are you kidding me? I look like hoo slung mung!"