All Pooped Out: And Other Gross Expressions (It's Just An Expression)

Foaming at the mouth
Coughing up a lung

Have you ever heard these crazy expressions? People use them even when no one's really dealing with a foamy face, or losing a lung. That's because these sayings are idioms--phrases that mean something different than what the words in them actually say. But don't let idioms make you sweat blood. Let's explore a variety of gross idioms and figure out what people really mean when they use them.