eat your wheaties
A dirty phrase that means you have to be on your game or you’ll look like a total idiot. You better be strong, smart, and maybe even a little magical.
Your friend says, 'Eat your wheaties or you’ll be eating your pride.'
Your dad says, 'Eat your wheaties or I’ll eat your snacks.'
Your coach says, 'Eat your wheaties or I’ll make you run laps.'