Wiktionary
n. (context idiomatic English) One stroke; one action or event with many results.
Wikipedia
One Fell Swoop is the second full-length album from Sioux Falls, South Dakota Acoustic/ Rock band The Spill Canvas. It was released on August 9, 2005, through 111 Records.
Usage examples of "one fell swoop".
But the problem remained of how best to arrange matters so as to get the maximum number of this devilish crew in the bag at one fell swoop.
Have you stopped to thinkreally thinkabout what will happen if we liberate six or seven hundred thousand people in one fell swoop?
She could get rid of MacFinn and Marcone's partner all in one fell swoop.
Those circumstances would be perfect for him, because he would be accomplishing both his goals with one fell swoop.
In one fell swoop, Cahill had fed her, distracted her, aroused her, and amused her.
So since all five of these are smaller than Mister Big Fella, they're either five of the DuQuesne-class SDs the Manties gave Grayson or else they just happen to've sent out eighty-odd percent of all the Manty-built ships they could be in one fell swoop.
A third cruiser dropping from zenith takes down every orbital communications satellite circling Jefferson, depriving me of visual data in one fell swoop.