We don't have synonyms for punching bags yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are punching bag and punching ball.
(n) :
A tough bag, usually cylindrical, filled with air, sand, or other material, often suspended so that it swings freely, which is punched or kicked when practising sports such as boxing or martial arts.
(n) :
(figuratively) A person serving as an object of abuse.
(n) :
A tough bag, usually cylindrical, filled with air, sand, or other material, often suspended so that it swings freely, which is punched or kicked when practising sports such as boxing or martial arts.
(n) :
(figuratively) A person serving as an object of abuse.