Sprayed with water from a hose, or in slang, ruined, defeated, or in serious trouble.
From 'hose' meaning a flexible tube for water, which comes from Old English 'hose' (stocking or leg covering). The tube shape resembled a stocking.
The slang 'hosed' (ruined) exploded in the 1990s, especially in computer culture and movies like 'Bill & Ted'—but nobody knows why a water hose metaphor became synonymous with being doomed!
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