For someone who lives outside the USA, what's the standard meaning of 'reverse racism'? I think I understand, as in: if the standard meaning of racism is a maj

For someone who lives outside the USA, what's the standard meaning of 'reverse racism'? I think I understand, as in: if the standard meaning of racism is a majority (Caucasian in this case) oppressing a minority (black, Mexican, asian, etc) then is reverse racism when said minority oppresses or acts against said majority? I hope not, that seems wrong. Prejudice (against a ethnicity, culture, class, gender, sexual orientation, religion, etc) is wrong no matter the percentage of the majority/minority doing it involved