I can't help it… I don't like the term fixie and, like the OP, think it sounds infantile. I also associate it with all the 'Make a perfect fixie' ad-spamming on eBay. I like fixed gear machines from the 30s to 50s.

[IMG] IMG_5261 by Dawes-man, on Flickr[/IMG]

Or even from 2009 - the legal heat (which some might remember) has faded and I've reconverted it back to fixed from automatic 2-speed Torpedo coaster brake:

[IMG] IMG_3027 by Dawes-man, on Flickr[/IMG]

Someone mentioned how fixed gear riders can spin… I went for a ride on the Chesini with a bunch of lads in their 20s a few Saturdays ago, lots on 54/16 ratios, and they left me standing. I started out in the first 5 and when the other 10 or so passed me it really was like being overtaken by motorcycles.

Oh, and this is my next fixed gear - I just have another couple of things to do on my latest road machine and then the work will begin:

[IMG] Untitled by Dawes-man, on Flickr[/IMG]