pound away(redirected from pound away on)
To strike or hammer someone or something repeatedly and with unrestrained force. Often followed by "at/on someone or something." He poured the corn into the mortar and pounded away with the pestle. The gangster started pounding away on some poor guy who had just tripped and spilled his drink. We pounded away at the sheet of rock beneath the soil, but we just couldn't penetrate it.
pound away (at someone or something)
to hammer or batter constantly on someone or something. The cops pounded away at the poor guy, and then they put him in handcuffs. The jackhammer kept pounding away at the pavement.