Definitions
There are 2 meanings of the phrase
Punching Bag.
Punching Bag - as a noun
A person on whom another person vents their anger
Example: "He resigned because his boss used him as a punching bag"
An inflated ball or bag that is suspended and punched for training in boxing
Synonyms (Exact Relations)
punch bagpunchballpunching ballExample Sentences
"I use a punching bag to practice my boxing skills."
"He hung the punching bag in the garage to have a place to release his frustration."
"The gym installed a new punching bag for the members to use."
"She signed up for kickboxing classes to learn how to use a punching bag effectively."
"The athlete spent hours each day working on the punching bag to improve his strength and technique."