下流 Traditional form: 下流 Pinyin (reading): xiàliú Definitions: lower course of a river low-class mean and lowly vulgar obscene Characters: 下 - below, underneath; inferior; to bring down; next 流 - to flow, to drift, to circulate; class Traditional characters: 下 - below, underneath; inferior; to bring down; next 流 - to flow, to drift, to circulate; class