keel over
verb
keeled over; keeling over; keels over
informal
: to fall down suddenly
He just keeled over and died from a heart attack.
I almost keeled over with/in laughter.
Cite this Entry
“Keel over.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/keel%20over. Accessed 9 Mar. 2026.
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Merriam-Webster unabridged
