"Fong kong" refers to something that is very obviously fake, plastic, or non-believable. It can also be used to refer to something or someone that tries desperately
hard to be
cool, but falls
flat.
This term has originated amongst South African youth, and was used mostly back in 2000-2002.
Desperado: "Hey Jerry, check out the boobs on that
chick!"
Jerry: "
Ai, that's fong kong if I ever saw it, boet!"