Gambler's chance is a term used to describe a risky and uncertain situation with uncertain results. There are several other synonyms that can be used in place of gambler's chance, such as a roll of the dice, a toss-up, a long shot, or a risky proposition. These phrases suggest a high degree of uncertainty, where the outcome could be either a win or a loss or is completely random. Other similar idioms for the same concept include a shot in the dark, a stab in the dark, or a flip of a coin. In any context, when words like these are used, it usually implies that there is a degree of chance or luck involved, much like gambling itself.