hammer at

hammer (away) at someone

Fig. to interrogate someone; to ask questions endlessly of someone. The cops kept hammering away at the suspect until he told them everything they wanted to know. They hammered at him for hours.
See also: hammer

hammer (away) at something

 
1. Lit. to continue to do a task that requires much hammering. The roofers are hammering away at the job, trying to finish before night.
2. Lit. to pound at or on something, such as a door. Who is hammering away at the door? The police are hammering at the door.
3. Fig. to dwell overly long on a point or a question. Stop hammering away at the same thing over and over. The agents asked question after question. They would not stop hammering at the issue.
See also: hammer
References in classic literature ?
And he hammered at me with a wigour only to be equalled by the wigour with which he didn't hammer at his anwil.
Veldman, a sophomore who will attend Oregon, won the shot put at 55 feet, 8 inches, the discus at 173-9, and the hammer at 191-7.
Have the hip axis remain square across the front, while the shoulder axis turns right to pick up the hammer at its apex.
Sharing and implementing a vision with Oriental Trading Company keeps Hammer at the forefront in industry specific trends.
Veldman, who will attend the University of Oregon next season, led a 1-2 finish with sophomore Tommy Sugishita in the hammer at 187-9 and 168-11.
Battle, who set a school record of 166-6 in the hammer at the Mt.