"When I use a word..."

After watching Jen Psaki's news conference yesterday several commentators were reminded of this from Through the Looking Glass. Having proved to his own satisfaction that un-birthday presents are superior to birthday presents because they can be given far more times in a year, Humpty Dumpty says:

“There’s glory for you!”

“I don’t know what you mean by ‘glory,’” Alice said.

Humpty Dumpty smiled contemptuously.

“Of course you don’t—till I tell you. I meant ‘there’s a nice knock-down argument for you!’”

“But ‘glory’ doesn’t mean ‘a nice knock-down argument,’” Alice objected.

“When I use a word,” Humpty Dumpty said, in a rather scornful tone, “it means just what I choose it to mean—neither more nor less.”

“The question is,” said Alice, “whether you can make words mean so many different things.”

“The question is,” said Humpty Dumpty, “which is to be master—that’s all.”