I'll bite your head off?

[Reign18]

Business Idiom in English, Intermediate level

ESL/EFL Test #133 "Ways of showing anger", question 2

You do that again and I'll ......... your head off.

(a) consume
(b) devour
(c) munch
(d) bite

Business Idiom in English, Intermediate level

ESL/EFL Test #133 "Ways of showing anger", answer 2

You do that again and I'll bite your head off.

Correct answer: (d) bite
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in lesson #33 ways of showing anger.

i can't really figure out the right answer, but i'm guessing the answer not sure if this is correct.

plzz explain it to me

[Kitosdad]

The talker is angry with the other person, and his remark is to show his anger.

He would ,of course, not bite their head off.
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Englishman living in Germany.