The phrase comes from online slang where bozo means a foolish person and capping means lying, both widely used in gaming, streaming and hip hop culture. This short clip spread through soundboards and short form edits as a reusable accusation, detached from any single original video. Its popularity comes from how instantly it translates, letting creators label a moment as dishonest without explaining the joke. It remains common in reaction videos, Discord calls and meme compilations about bluffing, cheating and bragging.