Definition of "buy it" in English

Verb

1. To die.

   • He bought it in a shootout.

2. To believe any particular assertion or idea; to support it.

   • 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.