keeled over

Dropped like deadweight

Keeled over describes suddenly collapsing or falling down, typically from illness, exhaustion, or death.

The expression comes from nautical terminology, where a ship that keels over has capsized or turned on its side.

When applied to people, it suggests an abrupt, dramatic fall rather than a gradual decline: He keeled over from heat stroke during the marathon.

The phrase often implies loss of consciousness or worse.

Related

passed out · slumped · founder · crumpled · capsize · tumbled · sink · topple · succumbed · plunged · out like a light · fell flat · took a tumble · hit the deck · give way · lights out · overturn · break down

Opposites
bodily position/posture

keeled overstood up

Failed to appear

stood tall · rose up · got up · sprung up · sat up

consciousness/vitality state

keeled overcame to

Regained consciousness

revived · perked up · recovered · rallied · bounced back

Family

keel, keeled, keeling, keels, over

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Negative · Everyday, not technical · Rated PG