mess up

[mess up] {v. phr.}, {slang}, {informal} 1. To cause trouble; tospoil something.

What did you have to mess up my accounts for?

2.To cause someone emotional trauma.

Sue will never get married; shegot messed up when she was a teenager.

3. To beat up someonephysically.

When Joe came in after the fight with the boys, he wasall messed up.