I have remarked on the fondness of young Americans–especially African-American rappers and/or people from the New York metropolitan area–for the glottal stop. Now it appears that another of Cockney characteristic, th-fronting, is ready for its U.S. closeup.
Th-fronting is a feature of Cockney–and now, apparently, of Estuary English–in which a th sound is pronounced like an f (as in I fink instead of I think) or v (as in the way the TV show “Big Brother” is commonly referred to in U.K. red-top tabloid headlines: “Big Bruvva”). Sacha Baron Cohen’s Ali G is a heavy user, and it’s been prominent recently in hip U.S. references to the Rolling Stones guitarist Keith Richards as “Keef.”
That same word actually represents the only indigenous U.S. use I’m aware of. It’s in the name of a teenage rapper from Chicago: Chief Keef. His website reports that he was born Keith Cozart but is silent on how Keith became Keef.
NOOB readers are a clever lot, and among them are probably one or two hip-hop fans. If so, I would be grateful for any enlightenment on the phenomenon of th-fronting among the rappers.