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A butt so big it makes the whole room shake. It goes up like a badunk and down like an adunk, and it’s usually owned by a girl who knows how to make people stare.
My cousin’s butt is so badunkadunk, I swear it moved the table.
She walked in and the whole class started laughing because of her badunkadunk.
I asked her if her butt was a workout, and she said, 'It’s a full-time job.'