Mastu is a French online creator whose name is attached to a series of short Smegma clips shared across user generated soundboards. Smegma 3 is the third entry listeners search for by that exact title, usually found alongside other Mastu sounds rather than as part of an album release. Its spread comes from reposting and soundboard use, where the odd title alone prompts clicks and shares. The clip stays in rotation because it is short, recognisable to fans, and easy to drop into meme edits without any setup or context needed beforehand.