The United States should be called the United States of Bethlehem.
The Christians could think it was in honor of their savior, but the real reason is the London insane asylum: Bedlam (or, originally, Bethlehem): after all, America is pretty much just a giant insane asylum.
See? Pretty insulting to most people, and not funny enough to warrant the two or three laughs anybody might derive therefrom :P
Came up with it while reading a NY Times article on Texas's pernicious influences on America's high school textbooks: creationism, revisionism, etc.