Flakka - "gravel" - is all the rage with amateur druggies in Florida and Texas and wherever else people who have watched a lot of "Breaking Bad" do home chemistry. origin malt promise no. Flakka gets its name from Spanish slang for a beautiful woman (“la flaca”) and first became popular in Florida before surging across the country. The "zombie drug" flakka is essentially the second generation of these terrifying chemicals. The drug Flakka has been gaining popularity all across the country with some pretty horrifying results.