Why is the Chimp called Dubya?

I've been thinking it for quite some time, and the answer to this question is finally provided by one blog. I'm reproducing it here (hopefully without any copyright problems):

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The origin of 'Dubya'

From: usaweekend.com

Columnist Molly Ivins coined it in 1995; it's the spelled-out Texas-drawl version of Bush's middle initial (for "Walker"). Her editor at the Fort Worth Star-Telegram tells us Ivins "owned" 'Dubya' from the mid-'90s to 1999, then it caught on with everyone else." Well, not really everyone. Close friends call Bush "George W." His dad sometimes calls him "Quincy," a reference to John Quincy Adams, the only son of a president to become president. And almost everybody else calls him "Mr. President."

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