Today’s wordy phrase is: “One fell swoop.” Shakespeare used this phrase for the first time in Macbeth (1605).
When Macduff learns that Macbeth’s murderers have killed his wife and children, he says:
All my pretty ones?
Did you say all? Oh hell-kite! All?
What, all my pretty chickens and their dam
At one fell swoop?
The phrase means “all at once.” The kite is actually a predatory bird that swoops down to catch its prey. So, in this case, Macduff is asking if all [his] pretty chickens (i.e. all his children) and their dam (i.e. their mother) were killed at one fell swoop (i.e. all at once) by Macbeth (i.e. the predatory kite).