behind their back

But winter was coming and neither the houses nor the crops would be ready if everyone continued to work with one arm behind their back.

Yet even as Asian countries extend one hand in an embrace, they keep the other behind their back, clenching a gun.

She has never been the one to speak ill of others behind their back.

Their posture was poor, maybe they kept their hands in their pockets or hidden behind their back.

They always negotiate while holding a sword behind their back.

Eg. It's shabby to speak evil of others behind their back.

You should not say bad words about your colleagues behind their back.

person who don't like talking others behind their back.

I think , sometimes the people around us(including myself) always talk about the things of others behind their back or speak ill of others.

It is very impolite to talk about others behind their back.

Don't criticize people behind their back!

Don't speak ill of others behind their back.

There you go, talking about people behind their back again.

We looked straight out the window and we saw the police with the guns and the two men with their arms behind their back.

I stood behind their back, didn't move immediately.

don't gossip (pass along rumour, or talk about people behind their back) or complain