What is Death Rattle?
1.
More often than not described as the last exhale of breathe, heard from the vibration of the neck when it is in an unusual position, allowing air to escape a narrow passage from the throat. It causes any of infinite odd sounds of expulsion of air.
You can imitate a death rattle for fun. Lean your neck backwards at 90 degrees and Pronounce terms such as "Ughrghrghrghrgh" or "Phhztttttt"
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2.
a sound produced by a person immediately preceding death, resulting from the passage of air through the mucus in the throat.
He gave a death rattle and then died.
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