Se cuadra feo pero batea duro
Used to describe someone who looks like they eat very little but manages to clear the table when the food is free, such as at a birthday party. (This is a baseball metaphor for a player who has an awkward stance but is a powerful hitter.)
Look at that guy, he looks so calm, but he ate half the empanadas. That guy se cuadra feo pero batea duro.
Automatically translated from Spanish