[noun] [U] [slang] - come a cropper to fail badly, or to fall from a horse or have a bad accident in a vehicleHaving reached the final, the British have come a cropper against the more experienced German team.She came an almighty cropper when her back wheels hit an icy patch.
CROPPER
Meaning of CROPPER in English
Cambridge English vocab. Кембриджский английский словарь. 2012