From Longman Dictionary of Contemporary Englishthe something/somebody from hellthe something/somebody from hellWORSE informal not polite something or someone that is the worst you can imagine She was the flatmate from hell. It was the holiday from hell. → hell
Examples from the Corpus
the something/somebody from hell• And the Weekend from Hell began.• She had good cause to weep: the Conservative party had just endured the week from hell. 