Slap
Put your fingers in somebody's business by slapping them! This method also works if someone is getting too involved in your business. Slaps are basically your way of doing business with your fingers.
ぼく
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ぼく is one way to say "I" in Japanese, usually used by dudes. But you're going to use it now when you slap this guy. Who's in everybody's business, slapping them? ぼく.