Open mouth

📖 What is the “Open mouth” sound?

This audio clip runs a little over twelve seconds and is associated with the TikTok 'open mouth challenge,' a trend built around timing a mouth-opening motion to a beat or cue inside the track. The sound itself isn't a spoken line but functions as a rhythmic or tonal cue that creators sync their physical movement to, often while holding their phone's speaker against their mouth. It spread through short clips where users exaggerate the act of opening their mouths on beat, sometimes paired with reaction-style footage of pets or animals doing the same thing for comedic effect. The clip tagged '@aliwuzhere' is cited by other TikTok users as a defining version of the sound, with some calling that creator the 'king' of the challenge. A related but distinct version, the 'wide mouth open' trend, uses a different song and format, often applied to green-screen templates layered over animal reaction content. Because the sound functions mainly as a timing device rather than a joke with inherent meaning, its comedic value comes almost entirely from the physical performance synced to it rather than from the audio content alone. Documentation on who first uploaded or produced the original track is sparse, and the trend appears to be a loosely grouped set of similar audio clips rather than one single canonical sound file. Its origin is not clearly documented.

🧭 Where it comes from

Origin: not clearly documented.

The sound is tied to TikTok's '#openmouthchallenge,' described in posts as a trend where users place their mouth over a phone speaker and open it in sync with the audio. One creator, @aliwuzhere, is referenced as popularizing the specific sound used in this challenge. No exact creation date or original uploader for the audio clip itself is documented in available sources. Its origin is not clearly documented.

🎬 How to use it in your edits

Drop this in right as a character's jaw drops open in a reaction clip, timing the cue to the exact frame their mouth goes slack for comic emphasis. It also works well layered under pet or animal footage where the subject's mouth opens, mimicking the open-mouth challenge format for an easy meme edit.

Download the file above, then import it into CapCut, Premiere Pro, DaVinci Resolve — or straight into TikTok / Instagram. The sound is free for your videos.

💬 Questions about this sound

ℹ️ Sound details