buy something

buy it

1. slang To believe that something is true. My brother says that his latest scheme will make millions, but I'm not buying it. I told the teacher that my dog ate my homework, and she totally bought it! At least I think she did.2. slang To die. When Ray got back last night, he told the boss that the informant bought it and won't be a problem anymore.See also: buy

buy something

Believe something; accept as true or satisfactory. For example, You think he's a millionaire? I just won't buy that. [Slang; 1920s] See also: buy, something