Kertas has circulated as a short, shareable soundboard clip rather than as a track tied to a widely documented film, show or song, so its appeal comes mainly from how easily it slots into online humour. With a runtime of under five seconds, it suits the fast turnaround of meme edits, reaction posts and short videos, where a brief sound can carry a joke without needing context. That portability has helped it stay useful for creators who want a compact, repeatable accent for everyday content.