The phrase itself comes from the traditional starting call used in running races, where competitors take their marks, prepare to run, and then start on the final word. That simple structure made it easy to lift into short online clips, where it now functions as a universal signal for the start of any contest. On meme soundboards and in short-form videos it is reused for races, challenges, and staged competitions, because viewers instantly recognise the rhythm and know that the action follows immediately after the last word.