What does this idiom mean: 'out on your ear'?

[Rahel]

Business Idiom in English, Intermediate level

ESL/EFL Test #135 "Ways of threatening", question 10

Let me put it simply one more incident like that and you're out on your .........!

(a) eye
(b) nose
(c) ear
(d) head

Business Idiom in English, Intermediate level

ESL/EFL Test #135 "Ways of threatening", answer 10

Let me put it simply one more incident like that and you're out on your ear!

Correct answer: (c) ear

Your answer was: incorrect
Let me put it simply one more incident like that and you're out on your head!
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Can you please explain the meaning of the phrase"Out on your ear"?

Thanx
Rahel

[prezbucky]

thrown out; evicted

I suppose it could also be used in firing, in the sense that when you're fired, you're thrown out of the company.
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