Resembling or suggestive of a corpse; having a deathlike, pale, or lifeless appearance or quality.
From corpse + -y (adjective suffix). This informal adjective form developed as a colloquial variant of corpselike.
In British slang, 'corpsy' is a quick, dismissive way to describe something looking terrible or deathlike—'You look absolutely corpsy this morning' is not a compliment!
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