A Bigawoo
A small human who looks like a baby but acts like a fool. They're cute but also a little ridiculous.
My little brother is a bigawoo. He eats ice cream for dinner and cries when he loses a game.
That kid at the park is a bigawoo. He runs around like he's on fire and laughs at everything.
My friend's kid is a bigawoo. He wears socks to bed and yells at the cat.