stop a bullet

a short drop and a sudden stop

A fall to one's death by hanging.

bite the bullet

To accept a negative aspect of a situation in order to proceed.

couldn't stop a pig in a passage

To be bow-legged.

dodge a bullet

To have a narrow escape; to avoid injury, disaster, or some other undesirable situation.

face that would stop a clock

A shockingly unattractive face.

get the bullet

To be fired from one's employment.

magic bullet

A simple remedy for a difficult or complex problem, especially a cure for a disease.

number one with a bullet

Superlative; impossible to beat.