How do the three phrases differ? For example:
Speaker A: Hey, I called to tell you about my audition.
Speaker B: "Don't tell me you screwed it."
Speaker B: "Don't tell me you screwed it up."
Speaker B: "Don't tell me you screwed up."
I found the three instances in Google Books:
Who the hell you think you are? You screwed it.
You had a nice cushy job with the Agency. You screwed it up.
I bet if you tell us what you screwed up, we could tell you how to fix it.
With you screwed up occurring more often (79,400 results).
What's the difference between the three. Which, for instance, would fit my example the best?