I do that all the time but I say it out loud and my wife punches me.
I always say "Goddamn dirty mudshark". Its funny because theyre always with some wannabe rapper or athlete decked out with diamonds and gold, and you always see them driving in HER car, and paying with HER money. Haha. Its always either high school age chicks that dont know any better, middle age girls with obvious mental problems, or fat chicks.
NOTE - This is in reference to chicks who are with ghetto black dudes because theyre 'black', not chicks with upstanding black dudes who are together because they actually care about each other.