You can use it in everything. Its a german word. That defines "bro!" or Wassup "Dawg!"
But also when your mad, in disbelief, in happiness and more. Its not racist like the word "nigga" and doesn’t have any association at all.
A colloquial and amicable alternative to the n-word, primarily used to convey the notion of a diligent and hardworking individual. This term finds its roots in a blend of diverse cultures and has gained popularity.
“Yo, pass me the remote, digga.” “Seriously, digga, can we watch that new comedy?” “ Yo Wha's good, my diggas!”