a little sneak sneak
When someone does something so sneaky and tiny that it's like they took one step and now they're telling the whole world they've won the lottery.
My brother did a 1-yard sneak and now he's acting like he's the king of the game.
My sister took one bite of pizza and now she says she's the best eater ever.
My dad took one sip of soda and now he's claiming it's the best drink in the world.