The line comes from SpongeBob SquarePants on Nickelodeon, where a French-accented narrator reads time cards between scenes. This extended gag breaks the fourth wall by pretending the original narrator quit from waiting too long. Clips spread on meme pages and soundboards alongside the spongebob sad song and the famous My leg gag, becoming a reusable shorthand for any exaggerated delay. Its popularity endures because the joke needs no setup and translates easily to school, work and gaming edits.
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The SpongeBob narrator time card line about so much later that the old narrator got tired of waiting, used for long waits and time skips in edits.
This is the deadpan French narrator from SpongeBob SquarePants delivering one of his famous time card lines, joking that so much time has passed the old narrator got tired of waiting and had to be replaced. The delivery is calm, dry and slightly exhausted, which makes the huge time jump feel even funnier. Creators use that contrast between a serious documentary voice and a silly cartoon delay to signal a long, awkward wait has just ended. It lands instantly for anyone who knows the show and works even without the visual card.