The phrase is Dutch slang with shiet borrowed as a crude, playful spelling, and the clip circulates on soundboards as a generic loud meme rather than from a confirmed film or show. Its appeal online is simple shock humor tied to poep eten jokes about eating poop, so it gets shared in Dutch speaking communities and in gaming chats where exaggerated insults are part of the banter. The exaggerated loudness helped it survive as a reaction sound long after similar voice notes faded from use.