A self-described car-buying expert says there’s one simple phrase shoppers can use at the dealership that could help them save money without getting into a heated negotiation.

Bill (@billythecarkid), who regularly posts car-buying advice online, shared the tip in a recent TikTok video. In the text overlay of the clip, he wrote, “THIS PHRASE WILL ALWAYS SAVE YOU $$$ @DEALERSHIP.”

According to Bill, the phrase dealerships and salespeople “hate” hearing most is simple: “Let me think about it.”

He says the strategy works because it signals to dealerships that a buyer is not desperate to make a deal immediately and could easily walk away to shop with competitors instead.

Bill argues that even if using the phrase only saves someone a few hundred dollars, it can still make a meaningful difference during a major purchase. He also says salespeople often become more willing to negotiate once they realize a customer may leave without buying.