1)Crackwhore- Think about this one, this is a quality word. It's not as much of a cool word in itself, as it is cool if you can use it in a sentence. "Hey Paul, where's your mom?" "Oh, that Crackwhore? She's grocery shopping"
2)Jank/Janky-This is a good overall word to describe something that is not going in your favor, or a product does not meet your high expectations. "Oh man! This pop tastes Janky"
3)Gravy-The true opposite of Janky.