Bomboclat comes from Jamaican Patois, where it is used as a strong exclamation of shock, frustration or disbelief. The word spread far beyond Jamaica in 2019, when it became a caption meme on Twitter, attached to images people were invited to explain or react to. Soundboard and bass boosted versions followed, exaggerating the shout for comic impact in short edits. That mix of a real slang exclamation and an internet reaction format is why the clip still works as instant shorthand for stunned disbelief.