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Mumblety-peg (also known as mumbley-peg, mumbly-peg,
mumblepeg, mumble-the-peg, mumbledepeg, mumble peg or mumble-de-peg) is an old outdoor game played using pocketknives. The term "mumblety-peg" came from the practice of putting a peg of about 2 to 3 in (5 to 8 cm) into the ground. The loser of the game had to take it out with his teeth. When the loser would go to remove the peg, it would sound as if he or she was mumbling.

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