The phrase comes from the French line in the clip itself, 120 secondes ca fait 1min20, and its humour depends entirely on the arithmetic being wrong. Clips built around confidently wrong answers have long circulated in French meme edits and reaction videos, where a short spoken line can sum up an entire mistake. This one spread as a reusable sound for maths fails, timer confusion and general brain lapse moments, and it stays useful because the error is understood immediately, even by viewers who do not speak much French.