punching bag
noun /ˈpʌntʃɪŋ bæɡ/
  /ˈpʌntʃɪŋ bæɡ/
 (North American English) (British English punchbag)
- a heavy leather bag, hung on a rope, which is hit with the fists (= closed hands), especially by boxers as part of training, or as a form of exerciseTopics Health and Fitnessc2More Like This Compound nouns with –ing formsCompound nouns with –ing forms
- airing cupboard
 - answering machine
 - asking price
 - baking powder
 - betting shop
 - boarding school
 - booking office
 - bowling alley
 - breathing space
 - breeding ground
 - changing room
 - clotting factor
 - cutting room
 - draining board
 - drinking water
 - eating apple
 - housing estate
 - icing sugar
 - living room
 - meeting place
 - nursing home
 - punching bag
 - racing car
 - sleeping pill
 - starting point
 - tuning fork
 - waiting room
 - working party