A special word used to describe the color of someone's attire. The appearance of the color, or physical attributes can also be included.
If John Q. Everybody was wearing a white shirt, with blue jeans and brown shoes, he'd be:
White shirt, brown shoes, blue-jean blerry.
Said after someone says something that one goes against or doesn't agree with; something irrelevant or completely unbelievable.
Kill it (definition #7) may also be added as a way to get the point across clearer.
Kathy: Britney Spears is so hot right now.
La' Sha: Girl, get down!
Or...
Lauren: Ludacris is so much finer than Usher.
Karee: Girl, get down and kill it!