No specific film, show or creator is attached to this clip in the available information, so it functions as a generic soundboard effect rather than a quoted line from a known work. Deep, pitch-shifted voice sounds like this became popular online because they are easy to recognise, easy to edit and instantly signal seriousness or surprise in just a few seconds. Short-form creators reuse them for reveals, intros and comedic contrasts, and their brevity makes them simple to drop into edits without trimming or mixing.