The line became famous through Monty Python and the Holy Grail from 1975, where impatient characters shout it to hurry a long winded tale along. That joke turned a very ordinary British expression of impatience into a shared comedy shorthand. As clips from the film circulated online, editors lifted the shout on its own and began using it on forums, streams and social videos whenever anything dragged. It remains popular because the meaning is instant, the phrase needs no explanation, and it fits almost any slow moment.