Dabo is a gambling game that was developed by the Ferengi and was often played across the Alpha Quadrant in the 24th century. When someone wins it is customary for them to shout "dabo!".
History and specifics
Given that the game was developed by the Ferengi, it is very possible to rig the dabo table.
Dabo girls are usually employed to operate the dabo tables as a means of distracting the players and increase their chances of losing. (DS9 episode: "The Abandoned")
In 2370, Quark answered Geordi La Forge's claims that his dabo tables were rigged by claiming that the tables were malfunctioning and that he needed to get them fixed. (TNG - DS9 comic: "Prophets and Losses")