Dance on a white girl
Call it John Travolta
from Nelly (Ft. 2 Chainz & T.I.) – Country Ass Nigga Lyrics on Rap Genius
Meaning

In this case, he also means he’s getting high off cocaine, which is sometimes called “white girl;” thus, double entendre
To help improve the meaning of these lyrics, visit "Country Ass Nigga" by Nelly (Ft. 2 Chainz & T.I.) Lyrics and leave a comment on the lyrics box