The name 123ertyujk looks like random keyboard typing, and the page gives no artist, title, show, or upload date that would identify the clip, so its origin cannot be confirmed from the information available. Sounds with names like this usually reach a soundboard as anonymous uploads, shared first in chats or small communities and then saved by listeners who want to replay or reuse a curious snippet. Its continued use is driven less by a known source than by that mystery, as creators test it, pass it on, and place it where an unexplained sound adds humour.