Place it at the end of a short exchange about a free request, letting the ask play out first, then follow it with Bruh as the next reaction, or lead into it with Emotional Damage when the ask is especially bold.
Über diesen Sound
This is a brief 1.5-second clip built around the German phrase nicht kostenlos, presented as one short spoken line with Marco named at the start. It lands as a blunt, slightly cheeky refusal, the kind of quick no that works when someone assumes a favour, a service or a download comes without a price.