it up. I found this racist website called 'The Root' and learned from one of their racist articles that the 'D' word is a synonym for the 'N' word.
"Dindu
/Dindoo:/ Offensive) noun: dindu; plural noun: dindus
an underhanded term for N*****.
ORIGIN: America late 20th century, Europe Early 21st century, taken from English Slang of “Didn’t Do Nothing” which sounds like Dindu Nuffin if one struggles to pronounce the phoneme “th” in “nothing” or the “t” of the English contradiction of Didn’t of “Did Not.” Commonly used by poorer Americans, notably when met by figures of authority. The term gained popularity after many images of Black American encounters with Law Enforcement and is now used to mock Black Americans who have police encounters."
The 'Dindu' Conspiracy: Donald Trump, America and an Inanimate Object Called Whiteness
https://www.theroot.com/the-dindu-conspiracy-donald-trump-america-and-an-inan-1845216455