Rubbish — but meant as a judgement, not a description. You call something dreck when it is of terrible quality and you want to say so with contempt: a bad film, a badly written book, cheap products, empty television. 'That new album is dreck.' It is uncountable, so no 'a dreck' and no plural, and it usually stands alone as the whole verdict, or comes after a word like 'complete', 'utter', or 'pure'. The flavour comes from where it entered English: Yiddish, where the word means dirt or excrement. So it is coarse in origin, though in English it has softened into more of a critic's insult than a swear word. It's most at home in American English, especially in New York and in arts journalism, where 'commercial dreck' is almost a set phrase. Many British and most Taiwanese speakers won't recognise it, so it's a word worth understanding when you read reviews rather than one to reach for in conversation.

垃圾貨、爛東西（罵作品或商品品質極差，帶輕蔑口氣）