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A way to say someone is super annoying, like a baby who won't stop crying, or a friend who's always messing with you.
My baby bro is babooii, he cried for 2 hours and still didn't get his way.
She's babooii, she texts me at 3 a. m. just to say hi.
My dog is babooii, he barks at the mailman like it's a war.