Possible Clues:

• An auctioneer's wooden hammer
• A wooden hammer
• What a blow from this to have encountered just about everyone
• It gives one quite a blow to have come across just about everyone
• Encountered about the whole of it to get beaten by the whole of it
• Knocker
• Everyone entering bumped into hammer
• Hammer for pegs or croquet
• Rubber hammer
• Hitting tool