One of the founders of a startup I once worked for, took great pride in naming his startup using a euphemism for his todger (Monty Python, meaning of life, Part VI: The Autumn Years, 'not the Noel Coward Song' http://www.guntheranderson.com/v/data/isntitaw.htm )

Now as a private company this was fine. But I imagine there was lots of chuckling going on explaining this question to the VC's and companies who eventually invested. The biggest laugh came as the company eventually went public and was sold out to a rather conservative consulting company. Took a while till the name was dropped.