SCREW UP 台無しにする

To screw up is to make a mistake, do something badly, or ruin something.

A screw-up is a mistake.

Be Careful! These expressions can sound rude (= not polite) when used to talk about other people's actions.
screw up とは、間違いをする、何かをするのが下手である、何かをだめにする、という意味です。

名詞形は screw-up で、失敗のことです。

注意：他の人の行為についてこれらの表現を使うと、失礼に聞こえることがあります。

SCREW UP

(coach to player)
I'm giving you one more chance. If you screw up again, you're off the team.
(two co-workers)
a: They want me to give the presentation next week.
b: Really? Congratulations!
a: Thanks. I just hope I don't screw it up.
BOSS: Your mistake has cost this company thousands of dollars!
WORKER: I'm so sorry. I really screwed up, didn't I?
a: I thought you sent the package last week.
b: I did, but there was a screw-up with the address. They delivered it to Washington State instead of Washington, D.C.
(supervisor to employee)
Another screw-up like that and you'll be out of a job (= you'll be fired)!

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