birl is an expression that became famous in Brazil for being used by former Big Brother Brasil (BBB) participant Kleber Bambam as a scream of strength and motivation.
the expression turned meme on social media after a video posted on Youtube which shows Kleber Bambam doing heavy physical exercises for bodybuilders and yelling “BIRL”.
In this same video, other expressions that also became meme are mentioned, such as: "the monster is coming out of the cage" and "it's show time".
Learn more about meaning of meme.
Even the expression does not represent a specific meaning, it is often used as a cry of motivation and strength, especially when someone is challenged by someone else. Several memes were made with a mocking tone about the subject.
The success of “BIRL” was so great that a group of developers created a programming language in softwares based on the meme, titled B.I.R.L (Bambam's “It's show time” Recursive Language).
The creation of this programming language is inspired by ArnoldC, where the basic codes and keywords are replaced by different phrases by actor Arnold Schwarzenegger.