upend
verb [ T ] uk/ʌpˈend/ us/ʌpˈend/
使颠倒;倒放
to push or move something so that the part that usually touches the ground is not touching the ground any more
She upended the chessboard halfway through the game because she was losing. 棋下到一半时她把棋盘掀翻了,因为她要输了。