When someone tells you, “You crack me up“, they’re saying that you make them laugh a lot or that you’re very funny. It’s a fun way to tell someone they’ve made you laugh.
Here are two examples in sentences:
Example 1:
“You crack me up, Sarah!” her friend said, laughing at her funny story.
Example 2:
Mike told his joke-telling colleague, “You crack me up with your humor, every single time!”
Now, let’s see two examples in a conversation:
Example 3:
Emma: Hi, Tom! Did you hear the one about the chicken crossing the playground?
Tom: No, Emma, what’s the punchline?
Emma: To get to the other slide!
Tom: Oh, Emma, you crack me up!
Example 4:
Lucy: Hey, John! How do you organize a space party?
John: I don’t know, Lucy. How?
Lucy: You planet!
John: Haha, Lucy, you crack me up.
So, when someone says “You crack me up“, they’re expressing that you’ve made them laugh a lot or that they find you amusing. It’s a fun, informal way to respond to someone’s humor or witty remarks.