But consider this: Bush does literally swagger. And I don't like his swaggering.
But my principal objective now is not to express my personal feelings about Bush's swaggering. Instead, now I want to emphasize the following point:
Although I cannot define or describe swagger, I think I know swagger when I see it -- and I bet you do too; to wit, I bet that many of us would use "swagger" in much the same way, that many of us would agree when swaggering is occurring and when it is not.If I am right about the workings of "swagger" in American English, it follows that at least some words that many of us cannot readily define sometimes serve as useful or meaningful references -- interpersonally consistent references -- to phenomena in the world. Q.E.D.: We don't always need definitions of words to make words useful or meaningful.
But: People who want to create computers or programs that mimic human behavior don't have the luxury of leaving referring words or concepts (such as "swagger") undefined: if it is to emulate human behavior, the computer or program must be instructed on how or when to use "swagger."