At my last place of employment, there was a really smart developer who was charged with building a shared library to setup new applications. He called it Jack Stack. He had it pretty much finished, but got pulled into other projects so he couldn't do much "internal marketing". Of bunch of us (friends of this dev) knew it was cool, but always teased him about how no one was using it.

Several months later, he is able to revisit it, and starts refactoring it. He gets on a chat with us saying, "I've got an amazing name for Jack Stack 2! Do you want to know what I called it?" Without skipping a beat, another friend typed, "Deprecated?" Oh the laughing that ensued... Every time it was brought up, I couldn't stop laughing...

But for reals, it was an amazing library.