on someone's back

Idioms  

1. Also, on someone's case. See under off someone's back.

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Example Sentences

But, he added, capturing rare images such as a hare feeding her leveret on someone's back lawn was "just amazing".

From BBC

We hotly debated early on when no one else was doing this, since we have this static device sitting on someone’s back deck.

From The Verge

I have seen grainy videos of gray aliens on someone’s back patio.

From New York Times

“Anyone who has ever arrested anybody who has fought and struggled knows that there is a good chance that your knee may end up on someone’s back,” Monahan said earlier this month, according to NY1.

From Fox News

Bush called it after winning the Iowa caucuses in 1980, could allow one of a cluster at the top in Iowa including Buttigieg and Biden to break away in the final month, help another work his or her way into the pack or, just as easily, paint a target on someone’s back.

From Seattle Times