speculate, risk, chance, buck the odds, wager, blow it, cash in, chance it, go for broke, take a flyer, bet the farm, put money down, roll (dice), take a chance, load the dice, blow on (the dice), crap out, put chips on the table, let it ride, give it a shot

gamble, hazard, buck the odds, venture, stake, bet on, chance it, go for broke, take a flyer, back (a player), try one's luck, blow (it/one's wad)