That's BS is a piece of internet shorthand for calling out something unbelievable, exaggerated or plainly false, and short spoken versions of it have become a staple reaction on soundboards, streams and short-form edits. Creators tend to reach for it when a clip needs a quick, no-nonsense verdict rather than a long explanation, because the phrase is instantly understood even without context. Its eight-second length also makes it easy to drop into gaming videos, reaction content and meme compilations without breaking the pace of the edit.
About this sound
A short voice clip of someone saying that's BS, used as a reaction sound effect for unbelievable moments, bad calls and obvious lies in videos and streams.
This is a short spoken reaction clip built around the blunt phrase that's BS, delivered in a dismissive, slightly exasperated tone that lands instantly. The voice is clear and close to the microphone, with a sharp emphasis on the final letters that makes the disbelief feel direct rather than playful. At just over eight seconds, it gives a creator enough room for the line to breathe without dragging the moment out. Dropping it over a failed play, a ridiculous claim or an obvious fake makes the audience feel the same scepticism the speaker does, turning a quiet eye-roll into a shared joke.