What is Ain't No Fo Jap Co!?
The literal translation is "Don't bring the hubcap to Hubcap Joe's". The popular phrase was coined by Walter Beans while he was attempting to express his opinion on a certain matter of importance, and accidentally slipped into his native tongue, an English dialect referred to as Walleney.
Look! I found a hubcap! Let's bring it to Hubcap Joe's!
Ain't no fo jap co!