What are the different meanings of “Chino” and why could a person be called that ?

Hi all, I have a Mexican friend who’s nickname is “Chino”, everyone calls him that including his boss at work. I understand the literal translation is “Chinese” but that makes no sense here. So what does “Chino” mean as a nickname for someone / why do they call him that ?

submitted by /u/zoebells
[link] [comments]