Answer:
meant to intimidate colored South Africans
Explanation:
We can make this conclusion because the text explains further the reasons for the use of such a phrase. Trevor Noah stated,
"The most common colored slur was boesman...Because it called out their blackness, their primitiveness. The worst way to insult a colored person was to infer that they were in some way black."
Because colored South Africans were born from parents of two different races, (one parent is black the other white) the phrase was used to create an intimidating effect in the minds of those affected.