“C'est pas faux” became widely known through the French comedy series Kaamelott, where it is closely associated with the character Perceval. The line spread far beyond the show because it perfectly captures pretending to follow a conversation without admitting confusion. Online, it is still used in French meme culture, reaction videos, and short edits whenever someone wants to signal vague agreement, social discomfort, or comic misunderstanding. Its staying power comes from how instantly the phrase communicates that very specific kind of bluff.