We have a distributed team so we have a simple "story database" based on text files in CVS. I finished story number 1337 yesterday and when I marked it "done", I noticed the number and thought for a minute about saying something about my h4><0r1ng pr0we55 in the commit message, but I decided it would be too geeky, so I didn't.
In my morning's email, I found that someone had replied to my boring CVS commit email for that story:
That was some really elite work on Story 1337.
So I needn't have worried about appearing too geeky, I suppose.