buy it

* In the die sense, apparently attested since the 1820s, thus earlier than the variant buy the farm, which may be an extension of it. * In the have it sense, an elliptical allusion to believing a sales pitch.

• "He claims that he'll pay me back, but I don't buy it."
• "He was claiming that he'd pay her back, but she wasn't buying it."
• "He had been talking up a storm about diversification of assets, and clearly they had bought it."

• have it