kill two frogs with one dart

Usage: A more unique way to say the highly overused "killing two birds with one stone."
Origin: Truly legendary members of native tribes that inhabit the lush rainforests of this planet have been rumored to possess the incredible ability of being able to kill multiple frogs with a single blowgun dart from exactly the right angle.

We can kill two frogs with one dart by doing that biochemical experiment!

With her blowgun, the hunter killed two poison dart frogs with a poisonous dart that was coated in poison from poison dart frogs.

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