The secret service does not explain things like this. Some say that Tumbler is not the right code name. Some the code was given to him when his father was President and that it was similar to his father's code of Timberwolf and that code names are not selected for what they mean but for their sound. One person says that Tumbler is a character in Captain America comics . One person says that tumbler is a drinking glass and seemed appropriate for "W". Some think it is short for Texas Tumbleweed.
Washington
Blue
to be president.
chuck e cheese
George Walker Bush
May and Flower
George H.W.Bush
Barbara Pierce Bush
70 zillion years
January 20, 2001
working at a public official
George W. Bush has a dog named Barney.