Seruput kopi is Indonesian for a coffee slurp, with seruput imitating the sound of sipping and kopi meaning coffee. The clip circulates on soundboards and in short-form edits from Indonesia, where coffee shop culture and kopi warung moments are common everyday references. Because the slurp is so brief and recognizable, creators reuse it as a standalone reaction, a WhatsApp-style audio joke, and a caption-free way to mark a satisfying first sip in meme videos.