Craps:
The popular casino dice game was previously known as crabs. The game is a simplification of the Old English game "hazard". The start of this game may have begun during the Crusades and later was influenced by French gamblers. Bernard Xavier Philippe de Marigny de Mandeville brought the modern American version to New Orleans. The game, first known as crapaud in the US, reportedly owes its modern popularity from being spread through the African-American community. The game involves players betting money against the casino on the outcome of one roll, or of a series of rolls of two dice. Craps can also be played in less formal settings and is said to be popular among soldiers.
Snake Eyes
In gambling, snake eyes is the outcome of rolling the dice in a game of
craps and getting only one pip on each die. The pair of pips resembles a
pair of eyes, which is appended to the term 'snake' because of the
long-standing association of this word with treachery and betrayal. The
dictionary of etymology traces that use of the term back to 1929,
although it may be traced all the way back to the ancient Roman dice
games, where 'Dogs' represented two ones. They referred to this as "the
dog throw". In modern parlance, it refers to such a roll in any game
involving dice.
Because this is the lowest possible roll, and will often be a loser in
many dice games, the term has been employed in a more general usage as a
reference to bad luck.
Boxcars (also: "Midnight") is the outcome of rolling the dice in a game
of craps and getting a 6 on both dice. The pair of 6 pips resembles a
pair of boxcars on a freight train. In modern parlance, it refers to
such a roll in any game involving 6 sided dice which are marked with
pips. The probability of this roll is 1 in 36, or about 2.8%. One of the
4 bets on any common craps table. It is on the 'high side' of the horn
bet in which the player can either bet on the 2, 3, 11, or 12. When the
player throws in money and calls out "midnight" or "Boxcars", the dealer
will usually 'book' the bet as a bet on the 12, so as to not create
confusion.