be on somebody’s back/ get on somebody's back

[Ivo]

Would you tell me whether I am right with my interpretation of the expression in bold in the following sentence?

Those damned merchants were always on his back, controlling, inhibiting. (P. Abrahams, “A Wreath for Udomo”)

Wives frequently get on a man’s back. (J. Grady, “Aussie English”)

be on somebody’s back = drive someone to the wall, to inflict torture on somebody, find fault with somebody, fling out at somebody

Thanks for your efforts.

[Beeesneees]

Always nagging at...
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Cheers m' dears!