Okay, let's pretend you're in a farm and there are donkeys all around you. Anaphora means when you repeat a word or a phrase a lot of times. Donkey anaphora is when you use the word "donkey" over and over again to make your point.
For example, let's say you wanted to tell me how important it is to take care of donkeys. You might say, "Donkeys need proper food, donkeys need clean water, donkeys need exercise, donkeys need love, and without these things, donkeys can get sick." That's an example of donkey anaphora because you repeated the word "donkey" a lot.
It's a way to make your ideas clear and easy to understand. So next time you need to make a point about something, you can use anaphora too!