The phrase "such talk" refers to a specific kind of conversation or discussion. It indicates that someone is talking about a particular topic or expressing certain ideas. Full definition
But I think that when we listen carefully, we hear such talk far less frequently than we imagine. (writerunboxed.com)
This, of course, would mean that permission wouldn't have been granted for such talks to have taken place but as we all know, this shit happens all of the time. (koptalk.com)