Yak is a slang term. It entails vomiting. It also refers to the Cognac liquor. Some people think that yak often refers to alcohol and women who look attractive from a distance.

Now as you have the question in your mind that why people  call Kodak Black ‘yak’ so you might know his life history.

He was committed to a child detention institution three times in one year and was subsequently placed on probation.

Black frequently committed crimes and went through several custodies. All of his crimes were related to drug dealing and torturing women. He also said bad things about the complexion of black women.

As his deeds are quite similar to the meaning of ‘yak’ so people call him yak.