noun General Slang

O-sign

· noun · medical

An unconscious patient lying with the mouth gaping open in an O — gravely ill.

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Definitions

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Bedside shorthand for a patient who's deeply out of it — flat on their back, jaw slack, mouth hanging open in a perfect O. It's the look that tells the on-call team this one's circling the drain. Pair it with the Q-sign (tongue lolls out the side) and the prognosis gets worse. Dark humour, but every hospital in the English-speaking world uses it.

“Bed four's gone full O-sign — somebody page ITU.”
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O-sign In A Sentence

Bed four's gone full O-sign — somebody page ITU.

Origin & Usage

Anglo-American hospital slang, mid-20th century.

Variants O sign

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