A "black pic" is when you break into someone's house at night and decide to take a selfie in the living-room. The picture will be dark due to the absence of light in the area. Hence the word "black".
A young man was arrested last night after a private residence noted the police of "a random dude chilling on the sofa, playing on a MacBook pro and taking black pics".
by Jojo finess' peasant July 4, 2018