Dermo is a common Russian colloquial term for excrement, widely used as a coarse slang exclamation similar to saying crap in English. Short spoken clips of single swear words spread easily on soundboards and in chat edits because they are instantly understood and easy to reuse. This recording has no confirmed source work or speaker, so its popularity comes from timing and tone rather than a known scene. It remains in use for reaction videos, gaming edits and messaging jokes where a brief, rude outburst says everything.
About this sound
The Russian word dermo shouted as a blunt exclamation for crap or failure, used as a short reaction sound for fails, disgust and frustration online.
Dermo is the Russian slang word for crap, delivered here as a short, sharp spoken exclamation that lands instantly. The clip is just the word itself, said with annoyed emphasis, so it reads as disgust, disappointment or disbelief without needing any context. At just over a second it works like verbal punctuation, cutting into a scene at the exact moment something goes wrong. Viewers familiar with the word hear it as blunt and a little rude, which is why creators use it for comic frustration rather than serious anger.