white slang 

To use correct grammer and/or correct verbiage in everyday conversation. To be grammatically correct.

"You talks funny, usin' them big words and all, I doesn't know no white slang like that"

white slang by nexusrace January 5, 2009

slangin' white 

To be talking like a white boy, as in you sound gay and you rarely use curse words

Yo whats with that homie slangin' white up in here

slangin' white by Super no September 20, 2005