that student

that student (con nhà người ta in Vietnamese)
an imaginary(or real) student that your parents always compare you to when you do bad(or well) at school. For example when you score 10 in your test and you tell your Asian mama, she would say that "that student" even scores higher, or they are able to earn scholarships,...(but how???)

Mom! I got a 9.0 overall in IELTS!
Uhh. Only 9.0?? Look at that student! He got a 10!