As multiracial artist Doja Cat is currently under fire for a recent video of her participating in racist alt-right chat rooms, the title of one of her previous songs is now under scrutiny as well. Doja Cat released "Dindu Nuffin" in 2015 on her Soundcloud but later took the song down, possibly for sample clearance reasons.
"Dindu Nuffin" is a derogatory play of the term "Didn't Do Nothing" when used in reference to black people claiming innocence in instances of police brutality. The phrase originated on 4Chan message boards when racists made fun of police murdering Michael Brown.
In the attached image, you can see an example of this term being used by former Ku Klux Klan Grand Wizard David Duke in reference to VladTV's last interview with Talib Kweli.