What is the definition of Notes Weapon?

A 'notes weapon' is basically a pen with a built-in stun gun or a pencil that shoots smoke bombs. It's like having a spy gadget on your desk, but instead of stealing secrets or throwing smoke bombs on enemies, it's more like trying to make your notes disappear in a puff of smoke and silence.

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Here's a chilling example sentence: "In the heart of the night, when all the world was asleep, I used my 'notes weapon' to remind my cat that his favorite purring spot was overrated, and to make him cry so much he'd need a vet visit."