A person serving as an object of abuse.
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.
A person who is actively engaged in battle, conflict or warfare; a soldier or combatant.
A person who is aggressively, courageously, or energetically involved in an activity, such as athletics.