The term alpha geek, has got most of its currency through a talk and online essay by Tim O'Reilly. In this talk he says that by watching what alpha geeks are doing you get a sense of what the future is like for the technology industry as a whole.

(Here's an addition to your dictionary.)

Detestable (adjective): software that isn't testable.

The chances of a demo going wrong are directly proportional to the importance of the audience.

I have the habit of creating Neologisms to describe the things I see in software development. It's a common habit amongst writers in this field, for software development still lacks much useful jargon. One of the problems with building a jargon is that terms are vulnerable to losing their meaning, in a process of semantic diffusion - to use yet another potential addition to our jargon.

Shu-Ha-Ri is a way of thinking about how you learn a technique. The name comes from Japanese martial arts (particularly Aikido), and Alistair Cockburn introduced it as a way of thinking about learning techniques and methodologies for software development.

At the end of the movie Unforgiven, Clint Eastwood's character needs to break out of town. He announces that if anyone tries to shoot him he'll kill him, then kill his family, and then burn their house down.

Adjective: a technique, tool, or design idea that is clearly too ludicrously simple to be any good, but when you start using it has a power that belies its simplicity.

YAaaS: Yet Another as a Service

These days everything seems to need to be “as a service”, so we need a meta-term for this linguistic trend. My thanks to my colleague Birgitta Böckeler for coming up with one. So now we can say things like “FaaS is a YAaaS for 'Function'”.