The phrase is Finnish, with tama meaning this, hiiren meaning mouse's, and paska being a crude word for crap, so the whole line works as a dismissive complaint about something worthless or annoying. Because the exact recording source is not widely documented, its life online is mainly as a shareable reaction clip rather than a quoted scene. Short voice lines like this spread through soundboards and reposts, where users save the audio, drop it into unrelated videos, and rely on the fed up tone to carry the joke even for listeners who do not speak Finnish at all.
O tym dźwięku
A short Finnish voice clip saying 'tama hiiren paska', used as a blunt reaction sound for frustration, bad luck and messy fails in video edits.
This is a brief spoken Finnish insult that lands like a frustrated outburst, roughly meaning this mouse crap in English. The delivery is flat and annoyed rather than shouted, which makes the line feel funnier when it is dropped over something small going wrong. At under three seconds it works as a quick punchline, cutting in right after a mistake, a gross reveal or an unlucky moment and letting the irritation speak for the viewer without needing any extra setup or explanation in the edit itself at all.