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Lie Detector determined that was a lie

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The famous “the lie detector determined that was a lie” clip from Maury, used in reaction edits, roast videos and fake expose memes.

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About this sound

The famous “the lie detector determined that was a lie” clip from Maury, used in reaction edits, roast videos and fake expose memes.

This sound is the dramatic Maury line, “the lie detector determined that was a lie,” delivered like a final verdict after a failed truth test. The clip is short, sharp and instantly recognizable, with a talk show tone that lands somewhere between accusation and punchline. It works because it turns any claim into a public debunking in a single beat. Viewers already know what it means, so the sound adds instant embarrassment, irony or comic rejection without needing extra explanation.

Pro tip

Place this right after a bold on-screen claim or obvious fib, then cut to a reaction face or awkward silence. It hits hardest with a brief pause before the line, and it loses impact if you stack it with other judgment sounds.

How people use it

Calling out fake flexes in meme edits.
Debunking obviously false captions or text messages.
Punching up reaction videos about bad excuses.
Roasting gaming clips with impossible claims.

More information

This clip comes from the long-running television talk show Maury, where lie detector reveals became one of the program’s most recognizable recurring segments. The phrasing spread far beyond TV through memes, reaction compilations and short-form edits because it gives creators a ready-made verdict in seconds. Online, it is often used the same way as a wrong answer gameshow buzzer, but with more personality and public-shaming energy. Its staying power comes from how clearly it signals that a statement has just been exposed as false.

FAQ

What is the “lie detector determined that was a lie” sound?

It is a short reaction clip of the line “the lie detector determined that was a lie,” commonly used to call out false claims, exaggerations or obviously fake stories in meme edits and reaction videos.

Where is this sound from?

The clip is associated with Maury, the television talk show known for dramatic lie detector reveals. That segment format made the phrase memorable and helped it spread online as a reaction sound.

Why do people use this sound in edits?

Creators use it because the meaning is immediate: it publicly labels a statement as false. It works well after a setup caption, a suspicious boast or a joke reveal, adding both comedy and a mock-serious verdict.