Is this supposed to be a joke?A little childish, methinks. It means: lick pussy

we make it as a study case here . so you don't say this word to people okay? since it is very vulgar and taboo . 吻屄 wen2 bi1 ( lick pussy, kiss vagina) 吻= kiss 屄=girl's gender/ vagina 這就顯明東方和西方的習俗、文化大區別。 （this is clearly shown us the big differences between western & easter cultures) 更是他們學習上比較開放。 (western are tend to be more open in educations field and others)

according to mitong_hk-tw, my explination is totally wrong, so i eliminated it.

看了楼上才知道，原来这个字读B。。。

that could be japaneses, japan still use this word, unless you are sure that is chinese , otherwise , it seems like japanese to me at least.