black-on-black
adjective
concerning black people exclusivelyblack-on-black violence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for black-on-black
Contemporary Examples of black-on-black
I have written that actually black communities are quite aggrieved about black-on-black violence.
Pre-emancipation, it was black-on-white; post-emancipation, black-on-black was preferred.