Meaning of "To strong arm"

[Frank Stern]

English Language Tests, Intermediate level

ESL/EFL Test #723 "Real Life: Using Body Parts as Verbs (3)", question 6

He tried to strong ......... us but it didn't work. His bully tactics don't work on me because I learned how to stand up to people like that a long time ago.

(a) arm
(b) face
(c) stomach
(d) nose

English Language Tests, Intermediate level

ESL/EFL Test #723 "Real Life: Using Body Parts as Verbs (3)", answer 6

He tried to strong arm us but it didn't work. His bully tactics don't work on me because I learned how to stand up to people like that a long time ago.

Correct answer: (a) arm

Your answer was: correct
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I selected "arm" but actually I didn't catch its real meaning here. What does it mean?

[Mister Micawber]

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To strong arm = to force someone to do something.
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Native English teacher at Mister Micawber's

[Frank Stern]

Thanks a lot, I got it.