I have 5 bikes..not all named though. The 1972 cherry red Schwinn Suburban, refurbished and outfitted with snazzy Cherry blossom panniers, bell, and moped mirror is 'Madame Ovary', in honour of my own shrinking ovaries. The Trek 8000 was affectionatly named The Blue Ba$tard, a tribute to the Ex who gave her to me. My powder blue beach crusier is 'Crusier', and my road bike, a Felt f55 is 'My bike'; I can't quite determine it's assigned gender yet.
I'm working on a name for an old lugged steel Miyata, bright yellow and heavy as sin.