Alex Pereira is a Brazilian mixed martial artist and former UFC champion known by the nickname Poatan, whose fights and walkouts have made him a popular figure in combat sports memes and fan edits. Chama is Portuguese for call, so the phrase works as a direct call for Pereira to appear, and fans use the short clip as a shorthand hype cue rather than a full commentary line. Because it is so brief, it fits easily into reaction videos, fight compilations and social edits where a longer shout would interrupt the action.