black at it again
When a black person is doing a steriotypical black thing, such as stealing, fighting, rioting, criminal activity
Did you see that video of those black people blocking a freeway? Ya, They are black at it again
Black Again
When a black celebrity who used cosmetic procedures to turn white his skin, decides to reverse the process in order to be black again.
Sammy Sosa, Black Again! Skin Reportedly Back To Old Hue.