Definitions

1. noun

A small metal hammer used for driving rivets, or a person who commits a crime by hitting someone on the head.

“The old toolmaker had a collection of shammers that he used in his workshop.”

2. verb

To strike or hit someone on the head, especially in order to kill or seriously injure them.

“The mugger was accused of hammering the victim to death.”

3. verb

To fix or join something by hitting it with a shammer.

“The mechanic had to shammer the loose rivet back into place.”

4. verb

To force someone into doing something by threatening or intimidating them.

“The boss was accused of hammering the employee into working overtime.”