Korean lesson 26: I messed up on the exam.

시험을 망쳤어요.
[Siheomeul mangcheosseoyo.]
I messed up on the exam.

A: 시험 어땠어요? 잘 봤어요?
[siheom eottaesseoyo? Jal bwasseoyo?]
A: How was the exam? Do you think you did well?

B: 잘 보긴요. 다 망쳤어요.
[Jal boginyo. Da mangcheosseoyo.]
B: No. I screwed up.

A: 왜요? 정말 열심히 했잖아요.
[Waeyo? Jeongmal yeolsimhi haetjanayo.]
A: Why? You've studied extremely hard for it.

B: 감기에 걸려서 집중할 수가 없었어요.
[Gamgie geollyeoseo jipjunghal suga eopseosseoyo.]
B: I just couldn't concentrate because I had a cold.

` 망치다[mangchida]' of `시험을 망쳤어요[siheomeul mangcheosseoyo.]' conveys the idea of spoiling or making a mess of things. It's also used when referring to a poor performance on a test.