well, asked my friends and figured out what it was...
there is a subtle line between dirty/sexy jokes like this vibrator story and nasty/porn type of trashy talking in porn movies or in private bedroom. americans know the subtlety; they know when/where/how to use them appropriately.
ok, i didn't come up above comments, really my friend told me that. over the years, in the process of learning another culture (not just language though language is a major part of culture), i found it is very difficult to master the concept "du" (degree?) or subtleties...
狗仔卡
樓主
對方裝傻回過來說那很貴的啊
