mad aleck
A kid who's so hyper they might just explode. Parents use this word when they're thinking about calling the cops.
My kid is a mad aleck. He ran out of the house like he was on fire.
He’s a mad aleck. I’ve seen him run laps around the house like it’s a race track.
She’s a mad aleck. She’s been talking nonstop for an hour like she has a million secrets to share.