The exact source of this clip is not clearly established from the available data, but “sag wallah” has circulated online as a short spoken meme sound used in reaction edits and joke videos. It is especially suited to social posts where a creator wants to question a claim or force a dramatic beat. Its popularity comes from the sharp delivery and easy repeatability: the phrase is brief, memorable, and works across many formats, from stitched reactions to caption-led memes and short conversational skits.