In 2004 the NY Times had an article about NYC sanitation workers and their surprisingly large pool of sanitation-related slang. The article can be found here. From this article I learned what they call "disco rice". Think about what that might be and then go here to find out.
See what I mean? Awesome and horrifying. At the same time.
P.S. If you read the article, my other favorite expression from it is "urban whitefish".
And now you know it too. This is my gift to you. You. Are. Welcome.