A racist and misogynistic term which literally means CHEAP WHITE MEAT.
Normally used by "looky looky" men selling things on the street, like sunglasses, souvenirs. It's specifically directed towards young white girls in tourist destinations, that attract lots of white people.
It's very common and a big joke among guys who work in these tourist places - the girls are worthless and can be used however you want. Every good seller is your best friend even when he doesn't respect you, the insult allows the seller to maintain his own ego even when they don't buy.
The thing that's so ironic is - the white people don't realize what it means and think the seller is being cute, it's really the perfect insult.
Hey chicken nugget! You wanna looky looky at my sunglasses? Nice good price for you. No? Ok chicken nugget!