A punching bag is a sturdy bag designed to be repeatedly punched. A punching bag is usually cylindrical, and filled with various materials of corresponding hardness.
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Famous quotes containing the word bag:
“I couldn’t find the spot where Frank had hidden the bag with the clothes. You can’t imagine how cold I was until I found them. You know, I’m beginning to understand why ghosts moan so in this sort of weather.”
—Lester Cole (1904–1985)