This sound is commonly associated online with Gemidão do Zap, a Brazilian prank audio that spread widely through WhatsApp in the mid-2010s. The joke was simple: hide a loud moan inside a seemingly normal video, image post or message so it played unexpectedly in public. That prank format helped the clip become a lasting meme across reposts, compilations and short edits. It still shows up because the setup is instantly understood by many viewers, especially in bait-and-switch comedy.