What is the definition of Postage Seeds?

Ah, postage seeds! Picture this: a tiny package that's basically nature's mailbox, filled with the seeds of doom. These aren't your average green beans, though they might look like that. Postage seeds are essentially a package of life-saving botanical doom, designed to sprout and wreak havoc on unsuspecting plants. They're like the Earth's version of a mischievous prankster, but with seeds and a much higher stakes.

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Now, here's a sentinel sentence for you, dripping with edginess and a hint of the unsettling: "The postage seeds of despair were delivered to my neighbor's house, promising to grow an army of pesky weeds and leave him with nothing but a wilting flower and a headache."