Enquire within upon everything The great Victorian-era domestic standby
ix. The player who takes more points than those to which he is
entitled, either in play or in reckoning hand or crib, is liable to be "pegged;" that is, to be put back as many points as he has over-scored, and have the points added to his opponent's side.
[In pegging you must not remove your opponent's _front_ peg till you have given him another. In order "to take him down,'' you remove _your own back peg_ and place it _where his front peg ought to be_, you then take his _wrongly placed peg_ and put it in _front of your own front_, as many holes as he has forfeited by wrongly scoring.]