What does "to cry their eyes out" mean?
Native speaker’s answer
Rebecca
To "cry one's eyes out" is an idiom that means to cry very hard or to cry for a long time. It is an exaggeration that is used to mean someone is crying so much, their eyes could pop out. Ex: After her dog died, she cried her eyes out for several days. Ex: The boy cried his eyes out after he dropped his ice cream on the ground. Ex: My mom is crying her eyes out over this sad movie.