a children's game played with a pocketknife, the object being to cause the blade to stick in the ground or a wooden surface by flipping the knife in a number of prescribed ways or from a number of prescribed positions.
Also mum·ble·de·peg, mum·ble·dy·peg [muhm-buh l-dee-peg] /ˈmʌm bəl diˌpɛg/, mumble peg, mum·ble-the-peg [muhm-buh l-th uh-peg] /ˈmʌm bəl ðəˌpɛg/, mum·ble·ty-peg, mum·bly-peg [muhm-blee-peg] /ˈmʌm bliˌpɛg/.
Origin of mumbletypeg
1620–30; from phrase mumble the peg (see mumble); so named because the losing player was formerly required to pull a peg from the ground with his or her teeth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
US a game in which players throw a knife in various prescribed ways, the aim being to make the blade stick in the ground
Word Origin for mumbletypeg
C17: from mumble the peg, a loser in the game being required to pull the knife out of the ground using the teeth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012