Simple past tense and past participle of upend.(verb)
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Use "upended" in a sentence
"So I kind of upended myself, you know, head first."
"Toll Brothers shed two cents to 18.93 after the luxury-home builder warned "preliminary signs of stability" in the housing market in September were "upended" during the October financial crisis."
"I came to one person who there was a truck that was kind of upended near him."