Interminority racism is when people from different minority groups discriminate and treat each other unfairly based on things such as race, ethnicity or culture.
Imagine you are playing at the park with your friends, and you see some new kids arrive. They look different from you and your friends - maybe they have different skin color or speak a different language. Now imagine that instead of trying to be friends with them, you start teasing them, calling them mean names and treating them badly just because they are different. This is similar to interminority racism when people from different minority groups treat each other unfairly and with disrespect.
It is important to remember that all people, no matter where they are from, are unique and special in their own way. We should treat everyone with kindness and respect, regardless of their background, culture or religion. By doing this, we can make the world a better place and encourage others to do the same.