What is Let It Ride?
1.
Withholding opinion of actions or future events that may occur.
After witnessng her placing a plastic plate and bread in the toaster oven, I feciciously said to myself, "I will let it ride."
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2.
After winning money in a casino, taking your winnings and continuing to gamble with them instead of cashing out.
I won a thousand bucks in Vegas last night, but I lost it all after I let it ride.
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3.
A casino game popular in Las Vegas, each player receives 3 cards, and the dealer receives 2 community cards. Players can make up to 3 bets to begin, and may rescind 2 of those bets based on the strength of their hand. The game is not played "against" the dealer, per se, in order to win you generally must have at least a pair of tens.
I had two Aces in the hole, so I put up my cards in let it ride and won all 3 bets I had made.