Bok Wai
Slanderous, racial epithet. A reference, by asians, to white people. The actual translation is mixed depending on who you talk to, but is either "White Devil" or "Pale Ghost".
Khan and Kevin as they are pointing to me and talking to Khan's baby daughter: "Ohh, Emily, you see the Bok Wai?!? Look at the giant Bok Wai!"