A neologism/wordplay based on a character's name (Jubei) from the video game Samurai Shodown (SNK). It is to be applied when the user of said character is of Jewish descent. Its usage covers both the gamer and his digital avatar.
If the user of Jubei is of Chinese origin, he or the character may be referred to as "Chou-bei".
"You, my friend, are quite the Jewbei."
"Jewbei, you cad!"