screws up

[Learner_2010]

English Idioms and Expressions, Advanced Level

ESL/EFL Test #41 "American Slang Words (15)", question 10

Tom's boss warned him that if he screws up one more time, he's going to fire him for good.

(a) wastes time
(b) makes a mistake
(c) doesn't get along with his co-workers

English Idioms and Expressions, Advanced Level

ESL/EFL Test #41 "American Slang Words (15)", answer 10

Tom's boss warned him that if he makes a mistake one more time, he's going to fire him for good.

Correct answer: (b) makes a mistake
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I've heard many times in American movies saying

1 )hey Don't screw up --- does this means don't be angry

2)Don't screw up this time----??

3) Don't screw it up-----??

please explain what else screw up means ?

thanks !
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Little deeds of kindness little words of love, help to make the earth happy like the heaven above :)

[Mister Micawber]

Screw up = make a mistake
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Native English teacher at Mister Micawber's