Oreo
/ˈɔːrɪəʊ/noun
(pl. -os)
1- US trademark a chocolate biscuit with a white cream filling〈美, 商标〉奥利欧（一种奶油夹心巧克力饼干）。
1.1
- derogatory an American black who is seen, especially by other blacks, as wishing to be part of the white establishment〈贬〉（尤指被其他黑人看做是）想成为白人社会一员的黑人, “白心”黑人。