a small, pointed piece of wood, used in fastening boards together, in attaching the soles of boots or shoes, etc.; as, a shoe peg.-a wooden pin, or nail, on which to hang things, as coats, etc. hence, colloquially and figuratively: a support; a reason; a pretext; as, a peg to hang a claim upon.-one of the pins of a musical instrument, on which the strings are strained.-one of the pins used for marking points on a cribbage board.-a step; a degree; esp. in the slang phrase "to take one down peg."-to put pegs into; to fasten the parts of with pegs; as, to peg shoes; to confine with pegs; to restrict or limit closely.-to score with a peg, as points in the game; as, she pegged twelwe points.-to work diligently, as one who pegs shoes; -- usually with on, at, or away; as, to peg away at a task.