dead duck
A person or thing in a hopeless situation or condition; one to whom something bad is sure to happen.
Человек или дело в безнадежной ситуации; кто-то с кем обязательно случится что-те нехорошее.
When the pianist broke her arm, she was a dead duck.
Don't even waste your time; it's a dead duck.
Даже не трать свое время, это дохлое дело.
dead from the neck up
Очень глупый человек; болван.
Don't waste your time making him change his mind; he is dead from the neck up.
Не теряй время, переубеждая его, он полный болван.
dead letter
An undeliverable letter that ends up in a special office holding such letters.
There is a dead letter office in most major cities.
dead loss
A total waste; a complete loss.
Our investment in Jack's company turned out to be a dead loss.
dead on one's feet
Very tired but still standing or walking; too tired to do more; exhausted.
Jimmy never leaves a job unfinished. He continues to work even when he's dead on his feet.
After the soldiers march all night, they are dead on their feet.
dead pedal
A slow moving vehicle.
Better pass that eighteen wheeler, Jack; it's a dead pedal.
dead ringer
A person who strongly resembles someone else.
Charlie is a dead ringer for his uncle.
dead set against
Totally opposed to someone or something.
Jack is dead set against the idea of marriage, which upsets Mary.