punching bag

American  

noun

1. an inflated or stuffed bag, usually suspended, punched with the fists as an exercise.

2. Informal. a person serving as an object of abuse; scapegoat.

   I told him that I wasn't going to be a punching bag for anyone.

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Etymology

Origin of punching bag

First recorded in 1895–1900

Example Sentences

Robinhood’s backers say the firm has been unfairly targeted by its critics, becoming a kind of industry punching bag held responsible for individuals’ investment decisions and broader shifts in the market.

From The Wall Street Journal

A punching bag painted by Basquiat features his signature crown motif atop the words “Mary Boone™.”

From The Wall Street Journal

It would be much better than just being life’s punching bag.

From Literature

Because horror is a genre built on excess, it’s also an easy punching bag.

From Salon

Hatton's parents made a small gym in the basement of their pub when he was 12, and it was there that he honed his skills on a punching bag.

From BBC