死定

死定	sǐ dìng	to be screwed; to be toast
死	sǐ	to die / impassable / uncrossable / inflexible / rigid / extremely / damned
定	dìng	to fix; to set; to make definite / to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc) / to congeal; to coagulate / (literary) definitely