Gambling 
To dream that you are gambling indicates that you are being risky. You could be avoiding responsibility by placing your hopes in fate or luck.
If you are not a gambler, then this suggests that you should trust your destiny and take a chance. Ease up.
Bet
Placing a bet or betting in a dream means the decision you have made recently has an unfavorable outcome. This dream in general is a warning telling you to be more careful about situation you're having and avoid coming into quick conclusion.
Dice
To dream about dice suggests that you have encountered bad luck with the stock market and could endure subsequent tough times. The dice symbolize luck and destiny.
To dream that your lover is throwing dice suggests that they are undeserving of you.
Bingo
Playing bingo in a dream means either it's commenting on age like how old you feel or it's an indication of hope for something to happen. Quirkily playing bingo or being surrounded by elderly people should urge you to consider what your dream may be telling you about yourself in regards to age. As bingo symbolizes your hoping for something to happen, it's yet most likely point to something that's against the odds such as winning the lotto.
Casino
To dream that you are at a casino represents the person inside you that readily takes chances. If you are a more restrained individual, this dream could suggest that you need to accept more risks. If you are outgoing, you could be required to make a reasoned decision rather than accepting chance or destiny.
Lottery
To dream of the lottery indicates a dependence on destiny. You are passive in taking accountability and thus believe that your efforts are useless since fate rules your waking life. You should evaluate and consider all angles of a situation before committing to an endeavor.
To win the lottery symbolizes your fervent wish to live a prosperous and worry-free life.
Las Vegas
To dream that you are in Las Vegas signifies luxury and gluttony. You need to show some better control at some aspect in your life, especially those relating to earthly concerns and desires. Alternatively, it suggests that emotional problems and concerns will affect how you perceive things in life.
Slot Machine
To dream of seeing or playing a slot machine indicates that you are being too frivolous with your finances. It also implies that you should focus your efforts on a task or project that will create more important results.
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