This is a general-purpose door sound effect rather than a quote or character clip. Sounds like this are widely used across short-form video, gaming edits and meme compilations because they instantly communicate arrival, interruption or confrontation. A door slam adds impact, while knocking adds context, so creators often use the pair together for stronger timing than a plain door knocking sound effect alone. It remains popular because the setup is universal, easy to understand without dialogue, and flexible enough for horror, comedy and prank-style edits.