/kraps/ , n. ( usually used with a sing. v. )
a game in which two dice are thrown and in which a first throw of 7 or 11 wins, a first throw of 2, 3, or 12 loses, and a first throw of 4, 5, 6, 8, 9, or 10 can be won only by throwing the same number again before throwing a 7.
[ 1835-45, Amer.; appar. craps, var. of crabs double-ace (lowest throw at hazard) 1 ]