overturn, capsize, pitch; see upset 1.
"keel-over." YourDictionary, n.d. Web. 15 October 2018. <http://thesaurus.yourdictionary.com/keel-over>.
keel-over. (n.d.). Retrieved October 15th, 2018, from http://thesaurus.yourdictionary.com/keel-over
To suffer temporary lack of consciousness:
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