Birl became a recognizable Brazilian internet meme through viral clips of Kleber Bambam shouting the phrase in gym-themed videos, especially ones widely shared on YouTube and social media in the 2010s. The delivery, not just the word itself, made it memorable: loud, aggressive, and instantly funny out of context. It stayed popular because it fits short-form edits perfectly, especially reaction posts, fitness jokes, and exaggerated confidence moments. Online, it often fills the same role as a bruh reaction, but with a more explosive tone.