drop-dead

1. ADV If you describe someone as, for example, drop-dead gorgeous, you mean that they are so gorgeous that people cannot fail to notice them. 異常地[非正式] [ADV adj]

She's tall, blond, and drop-dead gorgeous. 她身材高挑，一頭金發，簡直美極了。

2. ADJ Drop-dead is also an adjective. 異常的[ADJ n]

...the drop-dead glamour of the designer decade. ... 該設計師十年的獨特魅力。