The phrase a bordo means on board in Portuguese and Spanish, and todos a bordo is the familiar all aboard call shortened here to Tds A Bordo. No clear original recording, creator or year is documented for this short clip, so its life is mainly online as a shareable soundboard button. It circulates in travel jokes, departure memes and group chat edits, where the short call instantly signals that everyone should get in, sit down and go before someone gets left behind in the rush today.