Wiktionary
vb. 1 (context idiomatic transitive English) To accomplish a specified task easily and quickly. 2 (context idiomatic transitive English) To kill a specified person easily and quickly.
Usage examples of "make quick work of".
And by this time, having gotten involved in all kinds of questionable dealings myself, I was determined to make quick work of him.
But I warn you, I learned what I know long ago, high in the north, and you will surely make quick work of me.
And then, muttering barbarian imprecations that Thor's hammer could make quick work of this stupidity, the big man joined him in hewing at the rock.
He let me sit him on the log once more and covertly clean and dress his shoulder, while he watched the Indians make quick work of the skinning and butchering.
Perhaps a larger and more formidable vessel could make quick work of the problem.