In cold blood.
To do something deliberately in a ruthless manner.
A snowball's chance in hell
There's no chance at all.
Ghost town.
A deserted place where there are few or no people.
Stabbed in the back.
To be betrayed by a friend or colleague.
To dig one's grave
To be responsible for one's downfall or ruin. It's a way of expressing that you've made a big mistake.
To smell a rat.
To suspect that something wrong or dishonest is happening.
Skeleton crew
The smallest number of people needed for a business to operate.
To make someone's blood boil.
To make someone very angry.
To spill your guts.
To confess everything.
Over my dead body.
To refuse to do something.
Skeleton in the closet/cupboard.
To have an embarrassing secret about your past.
Graveyard shift.
A work shift that happens overnight.
To be scared stiff.
To get so scared you're not able to move.
Wouldn't say boo to a goose.
A shy or nervous person.
Witch hunt.
To unfairly seek to damage others, perhaps because of a false view of their beliefs.
Playing devil's advocate.
To present the other side of an argument even though you don't personally support it.
Drop dead gorgeous.
Someone very good looking.
Night owl.
A person who tends to stay up late.
Scaredy cat.
Someone who is easily frightened.
To scare the pants off someone
To frighten someone a lot.
Like a bat out of hell.
To move extremely quick without thought or in a panic.