The phrase comes from Russian slang, where nahui is a coarse way to tell someone to go away, and the clip circulates on user generated soundboards as a named callout joke. No widely documented original recording, speaker, film, or show is attached to this version, so its popularity comes from sharing rather than a known source. Russian speaking users pass it around as a prank audio and reaction for chats, streams, and short edits, especially when a friend called Ilya is being teased by the group.