Definition of: mumble-the-peg

(mum′bəl·thə·peg′) noun
A boy's game played with a jackknife, which is tossed and flipped in various ways so as to stick into the ground: so called because the player who failed was originally required to draw a peg out of the ground with his teeth. Also mum′ble-peg′, mum·ble·ty-peg (mum′bəl·tē·peg′). [<MUMBLE, v. (def. 2) + PEG]