I messed up.

Meaning

Informal expression of making a mistake.

Examples

• John: <b>I messed up</b>. I completely forgot about the deadline.
• Alice: Oh no! What happened?
• John: I was so distracted, I just lost track of time.
• Alice: It's okay, everyone makes mistakes. We all have those moments where we say to ourselves, <b>I messed up</b>.