When someone is whining and you are tired of hearing it, you can play the world's smallest violin to provide musical ambiance to dramatize their annoying whine. This is accomplished by rubbing your index finger and thumb together and saying, "This is the world's smallest violin, and it's playing just for you."

A person who doesn't realize they are transgender yet, or is in denial; an undeveloped transgender person. When they realize, it's referred to as the "egg cracking."

What you play for literally anyone who gets the golden buzzer on Americas got talent

when you have no sympathy for a douchebag for a friend who insults you and them the next day his girlfriend tells them it's over and expects sympathy from you