The exact original recording behind this clip is not widely documented, so it circulates mainly as a short, shareable reaction sound rather than as a quotation from a known show or film. Its appeal comes from the phrase itself: por supuesto is a common Spanish way to say of course, and pairing it with the name Lucho makes it feel like a personal, in-joke reply. That specificity helps it travel in Spanish-speaking chats, edits and streams, where a one-second agreement is more memorable than a generic yes.