No. I'm saying 'urban slang' doesn't mean what you think it means.
He's characterizing certain slang as 'urban slang' because what he's talking about comes predominantly from a site called urbandictionary, which has about as much in common with urban culture as amazon.com has in common with the rainforest.
Yeah. Except that he specifically mentioned Wiktionary as the source, and even if UD was the dictionary in question: why do you think they decided to name it "Urban Dictionary"? I'm sure that it was just completely coincidental that they picked 'urban' for a site built around defining slang terms.
It doesn't 'necessarily' imply that, but it is a widely-used euphemism for inner city hip-hop culture. Acting like it's not, that the term arises from the name of the slang dictionary (and not the other way around), is just wrong.
He's characterizing certain slang as 'urban slang' because what he's talking about comes predominantly from a site called urbandictionary, which has about as much in common with urban culture as amazon.com has in common with the rainforest.