| 释义 |
Definition of O sign in English: O signnoun US Medicine slang The persistently gaping, open mouth of a patient who is asleep, or (more commonly) in a coma, dying, or dead (frequently euphemism). Definition of O sign in US English: O signnoun US Medicine slang The persistently gaping, open mouth of a patient who is asleep, or (more commonly) in a coma, dying, or dead (frequently euphemism). |