There once was a proper young English miss named Alice Pleasance. She, according to Lewis Carroll biographers, was the real-life inspiration for a fictional Alice who tumbled down a rabbit hole and commenced a tour of a riotous realm called Wonderland.
During her wanderings, she encountered an egg named Humpty Dumpty and came away with a memorable sound bite.
Declaimed Mr. Dumpty, "When I use a word, it means just what I choose it to mean - neither more nor less."