There is a bet in certain situations that can significantly increase your chance of winning or lower the house odds, but at no time does the casino lose the edge. However, there are many bets that the gambler can make that will improve their odds and conversely, there are bets that significantly increase the odds of winning for the casino. In Craps, like any other casino game, the house retains a winning odds advantage. For more history about this dice game, a comprehensive summary is available here. How and why the game got the name Crabs is a matter of speculation and debate, but needless to say, was later called Craps as we know it today. It is believed to have originated from an ancient game called Hazard, the name derived from the Arabic word az-zahr, which is the plural for dice. Initially called Crabs, it is a casino table game played with dice. The game of Craps is older than you think.
Online Craps Games Guide to Online Crap Games Around the World