A short German voice clip saying 'Na, so nich, mein Freund' ('not like that, my friend'). Makers play it over fails and wrong answers as a correction.
The sound is a short spoken clip centered on the German line 'Na, so nich, mein Freund,' meaning 'no, not like that, my friend.' It is a direct-address phrase aimed at someone who has just gotten something wrong, and the words themselves do the work: a flat refusal followed by the softening 'mein Freund.' Running just over three seconds, the clip is sized for quick reaction edits, landing at the exact moment a fail or mistake plays out on screen and telling the viewer, without any extra context, that the attempt missed the mark.
No confirmed source documents where this recording originated, so its history is best described through how it is used. The line 'Na, so nich, mein Freund' is a colloquial German put-down for the moment someone confidently does something the wrong way, and as a clip it works as a reaction sound for fails, mistakes and wrong answers. One-phrase voice memes like this one get picked up wherever short reaction sounds are traded, since a three-second spoken punchline slots into any botched attempt. Its staying power comes from the phrase itself, which needs no setup to land.